Release Notes - Curl RTE 5.0.2
Silent installer error creating start menu shortcut
Upgrading or uninstalling the Curl RTE or Curl IDE can fail if the earlier install
was performed when the machine's regional settings were set to a host locale that differs
from the current host locale. A typical example would be to install one version of the
Curl RTE with the machine set to the Japanese host locale, and then to either uninstall
or upgrade with the machine set to the US or UK host locale. The failure looks something
like the following, displayed in a Command window when the silent installer is invoked:
Throwing unexpected:
ExistingFileException: Failed to create directory
'file:///c:/Documents and Settings/All Users/Start Menu/Programs/Curl RTE':
Cannot create a file when that file already exists (183)
*** Error encountered: ExistingFileException:
Failed to create directory 'file:///c:/Documents and Settings/All Users/
Start Menu/Programs/Curl RTE':
Cannot create a file when that file already exists (183)
+------------------------------------------------+
| To dismiss this window, press the 'enter' key. |
+------------------------------------------------+
Workaround: Restore the machine to the host locale that was in force when the original
installation was performed. Uninstall all. Switch the host locale to the new setting. Reinstall.
Install and uninstall of Curl RTE and Curl IDE products should be performed with the machine
in a consistent host locale.
Curl 5.0 does not install on SuSE 8.2/KDE (openssl dep)
The Curl RTE 5.0 does not install or run on the Linux SuSE 8.2 distribution.
Workaround: None available. SuSE 8.2 and Curl RTE 5.0 require incompatible versions of libcrypto.so.
FireFox is caching the plugin list and not noticing when Curl is installed
If running applets in a FireFox or Mozilla browser, and Java is disabled, FireFox
does not notice new plugins.
Workaround: You can browse about:plugins and FireFox or Mozilla will update its list of
plugins. You can enable Java in FireFox or Mozilla preferences. You can upgrade to newer
versions of FireFox or Mozilla, FireFox 1.0.5 and Mozilla 1.8 are expected to have this bug
fixed. This is a limitation of Mozilla and FireFox, see https://bugzilla.mozilla.org/show_bug.cgi?id=273785
Linux RTE installer adding bogus IDE menu shortcuts
The Linux RTE installer creates Start Menu shortcuts for the Curl IDE even when it is not installed.
Workaround: None. These menu shortcuts are harmless. They raise an explanatory dialog if clicked.
Must log out and log in again to see linux start menu items
On Linux systems running the Gnome window manager, the Start Menu items are not
displayed following installation of the Curl IDE.
Workaround: Log out and log back in to force the Start Menu items to display.
Installer does not correctly detect DirectX version
The Curl RTE requires Microsoft DirectX version 7.0 or
later to properly implement the graphics APIs. The Curl RTE installer detects
the installed version of DirectX. If it does not meet the minimum requirements,
the user is advised to install the most recent version of DirectX and is directed
to the Microsoft web site.
Curl, Inc. is aware of reports that on some machines running Microsoft
Windows 98SE the Curl RTE installer fails to report an insufficiently modern version of
DirectX. Our installer follows the Microsoft guidelines for detecting the correct
version of DirectX, and to date we have been unable to reproduce this problem in our testing
labs. Nevertheless, the workaround is simple: install the most recent version of
DirectX before installing the Curl RTE.
Remedy: Install the most recent version of DirectX before installing the Curl RTE.
Linux start menu items not created for KDE
On some versions of Linux running KDE, installing the Curl RTE
does not create Start Menu entries.
Workaround:
Run these applications from the command line.
Curl RTE => /opt/curl/surge/6/surge
Note that if more than one numbered subdirectory exists,
you need to invoke the highest numbered one.
That is, /opt/curl/surge/6/surge rather than /opt/curl/surge/5/surge
Underline on trademark symbol on Linux
If an underline style is applied to a trademark symbol, the underline
position may be offset relative to adjacent characters on certain
Linux systems.
Letters in italics sometimes clipped
Any character has one bounding box that is appropriate for text layout
and possibly a different bounding box that is appropriate for drawing.
The Curl RTE uses the layout box in both cases. As a result, the first
or last character in a line can sometimes be clipped slightly. The
same effect is at times seen in most web browsers.
XP and ATI 3d Rage Pro card shows graphics scrambling
In rare cases graphics output may be garbled. This has for example been observed with the
ATI 3d Rage Pro card under Windows XP. These problems can often be fixed by installing
the latest drivers from the manufacturers web site.
Fonts in Mixed Locales
There are three font aliases in the Curl RTE. These are "serif",
"sans-serif" and "monospace". The RTE uses the working locale to map
these font aliases to a particular font family name.
If an attempt is made to display Japanese string when the working
locale is English the alias could resolve to a font that does not
contain the Japanese characters. Such characters will render
incorrectly, usually as a small rectangle. This will only occur if the
host locale is "ja" and the working locale is "en".
curl://occ always opens in default browser
On Windows, OCC applets ("curl://occ/...") open in the default
browser even when the Url is entered in the address field of a
browser which is not the default.
W98: one minute pause before disconnected occ loading
On Windows 98 the Curl RTE may take 60 seconds to recognize that it
is disconnected from the network before loading the local copy of
an OCC applet.
The Curl RTE, when attempting to load an OCC (Occasionally Connected
Computing) applet, first checks to determine whether the client PC
can reach the server that hosts the applet over the network. If it
cannot, it transparently loads a local copy of the applet instead.
On Windows 98, the check to determine whether the client PC has
network access to the server hosting the applet takes 60 seconds to
fail. On other versions of Windows, the check takes a few seconds.
The only known workaround is to use Windows XP or Windows 2000 as
the client operating system.
Crash when 127.0.0.1 is denied
Do not deny connections to ip address 127.0.0.1 in your firewall. The Curl
RTE and Curl IDE rely on this loopback address for internal purposes.
These products will not function if access to ports on this address are
blocked.
Network socket limits
When running Curl RTE on Microsoft Windows 98, you can run out
of network sockets due to a low limit on the number of sockets in the OS. This
would show up as applets not finishing loading, or as errors about running out
of network resources. To fix this, using regedit, you can create a new registry
entry of type String at HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\VxD\
MSTCP\MaxConnections with a value of 256.
IE Javascript problem with window containing Curl applet
If an applet is opened using JavaScript's window.open call in Internet Explorer,
that window will not be closeable using window.close, unless the window.open call
has happened again while the window was already open.
Workaround: If an HTML page with the applet in it using an EMBED/OBJECT/IFRAME
tag is opened with window.open, then the window will be closeable with window.close.
This bug is known to Microsoft, and may be fixed in future OS service packs.
browse-forward and browse-backward do not work on Konquerer 3.1.4
Applet.browse-forward and Applet.browse-backward do not work for applets running
in a Konqueror 3.1.4 and early browser. If they are used, Konqueror will pop-up
an error about javascript: not being supported.
Workaround: This may be fixed in more recent versions of Konqueror.
browse-backward doesn't work on Netscape 8.0.2
Applet.browse-forward and Applet.browse-backward do not work for applets running
in a Netscape 8.X browser. If they are used, nothing happens.
Workaround: None, this is an issue with Netscape 8.X.
Issues with tabbed browsing in Firefox
The use of tabbed browsing in Firefox is not fully functional when viewing Curl applications.
IE crash with browse-url-post on W98 and ME
Using Applet.browse-url-post in an applet running in the Internet Explorer browser
on a Windows98 or WindowsME computer may cause the browser to crash.
Workaround: Use a different web browser or upgrade to a newer OS.
Problems with embed and object tags in Netscape 4.75
Netscape 4.X may display odd errors or no error when there is an EMBED tag or OBJECT
which points to a URL that doesn't exist.
Workaround: Upgrade to a newer browser. This is a limitation in the Netscape 4.X browsers.
Curl applet in POST response doesn't work in Konqueror 3.3.1
Any POSTed data sent to a Curl applet does not work correctly in Konqueror 3.3.1 and earlier.
Workaround: None known. This is a limitation in the Konqueror browser.
We treat all applets as sticky on mozilla-based browsers
In the following browsers, all Curl applets are "sticky". That is, they run as if
'{applet.become-sticky}' appears in the applet source code. Therefore, browsing to
the Url of an applet which is already in the browser history simply returns to the
existing applet instance.
This limitation affects
Workaround: None. This is a limitation in the Mozilla-based browsers, which do not
support providing history information to plugins.
Linux: Konqueror does not automatically notice new plugins
The Konqueror browser running under KDE does not automatically recognize the presence of the Curl plugin.
Workaround: In Konqueror, go to Settings -> Configure Konquerer -> Plugins -> Plugins
Press the button labeled "Scan for new plugins".
Embedded curl fails to print on IE 5.0
Microsoft® Internet Explorer version 5.0 will not print Curl
applets that are embedded in a Web page.
To solve this problem, upgrade your version of Microsoft®
Internet Explorer. Download the latest version from the Microsoft
Web site.
.curl links that open in IE fail with anchors
A link from a Curl applet to another Curl applet via a file URL that
contains an anchor string will not behave properly in Microsoft
Internet Explorer.
An example of this type of link is:
{link {url "file:///c:/my-directory/document.curl#destination"} Click here!}
Internet Explorer will link to "document.curl" but will not scroll
to the anchor, "#destination".
Linux browser menu behavior when viewing applets
On Linux, certain web browser menus are disabled or nonfunctional
when viewing Curl applets.
Mozilla: The "find" menu is not connected to the Curl RTE and does not cause
anything to happen.
Epiphany: The "find" menu is not connected to the Curl RTE and does not cause
anything to happen. Selecting "print" causes Epiphany to pop up a
printer dialog; when you close it, the Curl RTE pops up its own dialog.
Konquerer: Quite a few menu items like "find", "print", etc., become
disabled when viewing a curl applet.
Curl RTE on Fedora Core 3 over SSH
Recent versions of OpenSSH uses untrusted X11 cookies by default.
This means you may experience errors when running Curl over SSH on
Linux on Fedora Core 3. The earlier behaviour can be restored by
setting ForwardX11Trusted yes in ssh_config. See the OpenSSH FAQ.
Keyboard Focus in Mozilla Address Bar under Linux
If you are running a Curl applet using Mozilla on Linux, you may find
that once the keyboard focus has been given to a Curl applet it is
difficult to get it back to the browser address bar. This appears
to be a bug in some versions of Mozilla.
Our Mozilla lacks Japanese resources
The Curl RTE on Linux will use a copy of the Mozilla browser which
is included with the Curl RTE, when it needs to spawn a web-browser,
if it can't find a suitable web-browser already installed on the machine.
This copy of Mozilla only includes English resources, regardless of
what language the user might use.
Konqueror browser has issues running Curl plugin
The Curl RTE does not work correctly running under the Konqueror browser,
due to the failure of the Konqueror executable to call
"NPP_Destroy()" at the proper times. The effect is that reloading
an applet creates a new instance rather than replacing the former
instance. Eventually, a large number of Curl RTE processes is created
leading to an exception. The only workaround until Konqueror fixes
their code is to shut down the Konqueror browser from time to time
to clear out all Curl RTE processes associated with that browser.
On Linux, the Curl RTE doesn't copy over Firefox profiles so user settings will be ignored
The Curl RTE on Linux uses Mozilla based libraries to handle http: and https:
URLs, and makes copies of the user's most recently used Mozilla profile to
get various settings like Proxy servers to be used and client side certificates
to use. However the Curl RTE does not copy over Firefox profiles, so Firefox
users would need to run Mozilla to make changes to settings that would be seen
by the Curl RTE.
Driver Au8830 fails during install or shutdown on NT
If you are running the Curl software platform on the Windows NT,
you may encounter the following error message: "SURGE.EXE - Cancel
Timeout. The driver \Driver\Au8830 failed to complete a cancelled
I/O request in the allotted time."
This indicates that you may need to update your audio driver. This
information can be found at
http://www.3dsoundsurge.com/drivers/Vortex2/.
If you encounter this problem after updating your audio driver,
contact our support team at support@curl.com.
Audio on NT only works for "curl and nothing else" or "everything but curl"
In Windows® NT, if a sound source is playing when you start the
Curl Runtime Environment, sound from applets written in
the Curl content language will not play until you close the
original sound source and restart the Curl RTE.
Curl turns Ineternet Explorer icon into Netscape icon
Occassionally, when a Curl applet is loaded into Internet Explorer,
the Internet Explorer icon in the upper left corner of the window
and the icon in the task bar changes into the Netscape icon.
Curl applets that use links that specify a target window may not work in Firefox
If you use Firefox as your default browser and have Firefox configured to
open links to new windows in new windows, Firefox may freeze if you use links
in Curl applications that specify a new window as a target.
Workaround: configure Firefox to force links that open new windows to open in
either the same tab/window as the link, or, a new tab. This option is set through the
Tabs pane of the Tools -> Options dialog in Firefox.
Security warning when starting surge on Vista with IE 7 in protected mode
If you install the Curl RTE or Curl Lab on Microsoft's Vista with the process
ieuser.exe running, when you try to load a Curl applet, you will get a
security warning indicating that:
"A website wants to open web content using this program on your
computer...."
To workaround this problem, you can:
- make sure that ieuser.exe is not running when you install the Curl RTE, or,
- reboot after installing the Curl RTE
IE 7 thinks Curl applet is still loading when running file from the IDE
If you use Internet Explorer 7 with the tabbed browsing feature turned off,
when you run a Curl applet you may see that IE 7 displays the
animated spinning icon by the address filed, indicating that
IE 7 thinks the applet is still loading although the file has completed loading.
If you reload the applet in IE 7, the animated spinning icon will stop
when the appplet finishes loading.
ctrl+N and ctrl+T commands are doubled in Firefox
Some acclerator commands in Firefox are executed twice when a Curl applet is loaded, for example,
using ctrl+T, ctrl+N and ctrl+H for New Tab, New Window, History.
Changing security level in IE 7 with curl applet loaded causes IE 7 to crash
If you change the system security level in Microsoft Internet Explorer 7 with a Curl applet
loaded in IE 7, IE 7 will crash.
The Curl Control Panel is available by clicking on the Curl
icon in the system tray, then clicking Show Curl Control Panel.
If the icon is not visible, you may raise the Control Panel via the Windows® Start menu.
Control Panel: No syntactic validity checking for hosts and directories
Privileged hostnames in the Control Panel are not validated.
There is no semantic validity checking for hostnames you enter as
privileged locations in the Curl Control Panel. Also, the preceding
http:// is assumed, so you should not enter it.
There is syntactic validity checking, to the extent that location
names containing spaces are rejected.
Difficult to edit in trusted location of Control Panel
You cannot edit a Privileged Location in the Curl Control
Panel. To change an entry, first remove it (by clicking the
revoke privilege link) and then add the desired entry.
