VNC® Free Edition 4.1 - known bugs and features
The following are known bugs, features and omissions in VNC Free Edition 4.1. You may also wish to check the known bugs, features and omissions in VNC Free Edition 4.0.
| Date | ID | Platform / Program | Description | Workaround | Status |
|---|---|---|---|---|---|
| 12 Jul 2004 | 4 | Windows server | When Ctrl-Alt-Del is sent remotely to the VNC server, causing the Logon dialog to be shown, the username and password fields may appear grayed out. This behaviour has only been reported under Windows 2003 systems. | Cancel the Logon dialog and send Ctrl-Alt-Del again. | Under investigation |
| 1 Sep 2004 | 9 | Windows server | The Control and Alt keys can become "stuck" when the Send Ctrl-Alt-Del command is used remotely. | Press and release each key a couple of times from a new viewer session, to cause the server to reset the keys' states. | Under consideration |
| 1 Sep 2004 | 10 | Windows viewer | When Fullscreen mode is selected via the F8 menu, the Windows taskbar can remain on top of the VNC viewer window. | Use the system menu (accessible via the icon at the top left
of the VNC viewer window) to enter Fullscreen mode - the bar will
then dissappear after a short delay. or Click on the taskbar, then back on the VNC viewer window - the bar will dissappear. |
Under consideration |
| 10 Mar 2005 | 11 | Windows server | The tray icon's tooltip is sometimes not visible, or displays out of date information. | None | Fixed in VNC Free Edition 4.1.1 and VNC Enterprise Edition 4.1.4 |
| 10 Mar 2005 | 12 | Windows viewer | VNC Viewer does not respect the Monitor parameter, and the viewer window can appear behind the toolbars if they are at the top or left of the display. | None | Fixed in VNC Free Edition 4.1.1 and VNC Enterprise Edition 4.1.4 |
| 10 Mar 2005 | 13 | Windows server | The Disable local inputs option does not take effect the first time that the server is accessed. | Disconnect all viewers, then reconnect. | Fixed in VNC Free Edition 4.1.1 and VNC Enterprise Edition 4.1.4 |
| 10 Mar 2005 | 14 | Windows server | If the Desktop -> Remove wallpaper option is enabled when running under pre-XP versions of Windows then Active Desktop is enabled when the last viewer disconnects, regardless of whether it was originally enabled. | In the Active Desktop content settings, ensure that all web content are unticked. | Fixed in VNC Free Edition 4.1.1 and VNC Enterprise Edition 4.1.4 |
| 10 Mar 2005 | 15 | Windows installer | If the installer is used to upgrade or replace an existing installation that is still in use, the user will be prompted to reboot the machine, even under Windows NT based systems. | Ensure that no VNC components are running before upgrading/replacing existing installations. | Fixed in VNC Free Edition 4.1.1 and VNC Enterprise Edition 4.1.4 |
| 10 Mar 2005 | 16 | Unix server (XFree86 module) | The vnc.so VNC Server module for XFree86 fails to load into the X server, with errors indicating missing dependencies. | None | Fixed in VNC Free Edition 4.1.1 |
| 29 Mar 2005 | 18 | Windows Viewer Free Edition 4.1 | Western European accented characters as defined by ISO-8859-1 are stripped out when clipboard data is exchanged between viewer and server, in spite of being officially supported by the RFB protocol specification. | No workaround | Under consideration |
| 29 Mar 2005 | 20 | Windows Server | Although "Only prompt when there is a user logged on" may be configured for VNC Server on Windows 9x/Me/NT4/2000, the setting does not take effect, because VNC Server does not in fact support the option under these platforms. | No workaround | Under consideration |
| 29 Mar 2005 | 21 | Windows Server | The tray icon tooltip continues to display the host computer's full set of IP addresses even when VNC Server has been configured to accept connections only from the local machine. | No workaround | Under consideration |
| 25 Jan 2006 | 53 | Unix Server | The vncpasswd command can crash if a long password is entered. | Enter only the first 8 characters of the required password. | Under consideration |
| 12 May 2006 | 54 | VNC servers | A security vulnerability was discovered. | Upgrade to fixed version | Fixed in VNC Free Edition 4.1.2 |
| 17 October 2008 | 55 | VNC viewers | A security vulnerability was discovered in the listening viewer only. | Upgrade to fixed version | Fixed in VNC Free Edition 4.1.3 |
If you encounter a bug with VNC Free Edition, please first make sure you are running the latest release. If the bug still exists, please report it via the appropriate support channel.