VNC Personal Edition 4.1 - known bugs and features
The following are known bugs, features and omissions in version 4.1.
| 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 |
| 29 Mar 2005 | 22 | Windows Server Enterprise Edition 4.1.5, Personal Edition 4.1 | When connecting to a server over a slower connection, VNC Viewer can mistakenly switch temporarily into low-compression (Hextile) mode, and permanently into full-color mode. | Disable Auto-select in the VNC Viewer's Color / Encoding settings, and choose the correct settings manually. | Fixed in VNC Enterprise Edition 4.1.6, VNC Personal Edition 4.1.1 |
| 31 Mar 2005 | 23 | Windows Viewer Enterprise Edition, Personal Edition | When making an unencrypted (Encryption: Prefer Off) connection to a server using Single Sign-On authentication, VNC Viewer can hang after the authentication phase, before displaying the remote desktop. | Use Encryption: Always On with Single Sign-On, or disable Single Sign-On. | Fixed in VNC Enterprise Edition 4.1.6, VNC Personal Edition 4.1.1 |
| 31 Mar 2005 | 24 | Windows Viewer Enterprise Edition 4.1.5, Personal Edition | After first generating a secure key when connecting to a secure server, the connection may fail with a private key error. If the connection is then re-tried using Auto Reconnect then the viewer will continue to prompt the user to generate a secure key, and to fail to connect. | When VNC Viewer prompts to reconnect, respond No, then make the connection again manually. | Fixed in VNC Enterprise Edition 4.1.6, VNC Personal Edition 4.1.1 |
| 8 Jul 2005 | 26 | Windows Viewer | VNC Viewer cannot load VNC 3 configuration files that do not contain the user's password. | Edit the .vnc fileusing notepad and remove the "Password=" line. | Fixed in VNC Enterprise Edition 4.1.7, VNC Personal Edition 4.1.2 |
| 8 Jul 2005 | 27 | Windows Viewer Enterprise Edition 4.1.6, Personal Edition 4.1.1 | VNC Viewer crashes if the local clipboard is changed while any AutoReconnect prompts are visible. | Avoid Copy/Cut operations until the AutoReconnect dialog has been dismissed. | Fixed in VNC Enterprise Edition 4.1.7, VNC Personal Edition 4.1.2 |
| 8 Jul 2005 | 28 | Windows Viewer Enterprise Edition 4.1.6, Personal Edition 4.1.1 | VNC Viewer presents the Connection Details dialog when the listening mode viewer is closed. | None | Fixed in VNC Enterprise Edition 4.1.7, Personal Edition 4.1.2 |
| 8 Jul 2005 | 29 | Windows Viewer Enterprise Edition 4.1.6, Personal Edition 4.1.1 | Creating a new connection with an existing viewer's New Connection menu item causes the original viewer to become unresponsive until the new connection is closed. | Start new connections by running a new VNC Viewer directly. | Fixed in VNC Enterprise Edition 4.1.7, Personal Edition 4.1.2 |
| 8 Jul 2005 | 30 | Windows Viewer Enterprise Edition 4.1.6, Personal Edition 4.1.1 | Changes made to the VNC Viewer default settings are not reflected in the Default Options dialog of listening viewers. | None | Fixed in VNC Enterprise Edition 4.1.7, Personal Edition 4.1.2 |
| 8 Jul 2005 | 31 | Windows Viewer Enterprise Edition, Personal Edition | The Ctrl, Alt and Full-screen ticks in the F8 menu can become out of sync with the actual state of the viewer. | None | Fixed in VNC Enterprise Edition 4.1.7, Personal Edition 4.1.2 |
| 8 Jul 2005 | 32 | Windows Viewer Enterprise Edition 4.1.6, Personal Edition 4.1.1 | The listening viewer port is not released until any viewer windows started using the reverse-connection mechanism have been closed, even if the listening viewer itself is closed. | None | Fixed in VNC Enterprise Edition 4.1.7, Personal Edition 4.1.2 |
| 8 Jul 2005 | 33 | Windows Viewer Enterprise Edition & Personal Edition | When connecting using a .vnc file, VNC Viewer will not offer to continue connecting if the server's identity does not match the one stored in the .vnc file. | Open the .vnc file with notepad and remove the "Identity=" line. | Fixed in VNC Enterprise Edition 4.1.7, Personal Edition 4.1.2 |
| 8 Jul 2005 | 34 | Windows Viewer Enterprise Edition & Personal Edition | VNC Viewer does not respect the Preserve Aspect Ratio setting when first entering Scale to Window mode. | None | Fixed in VNC Enterprise Edition 4.1.7, Personal Edition 4.1.2 |
| 8 Jul 2005 | 35 | Windows Viewer Enterprise Edition & Personal Edition | VNC Viewer does not restore itself to full-screen mode after having been minimized using the shell's "Show the Desktop" menu item. | None | Fixed in VNC Enterprise Edition 4.1.7, Personal Edition 4.1.2 |
| 8 Jul 2005 | 35 | Windows Server | When the RemoveWallpaper option is set, the desktop wallpaper may not be removed until after the first update has been sent to the viewer. | None | Fixed in VNC Enterprise Edition 4.1.7, Personal Edition 4.1.2 |
| 12 Jul 2005 | 39 | Viewer | VNC Viewer will fail with the error "BufferedInStream overrun: max itemSize exceeded" if the server's cursor becomes excessively large (e.g. 64x64 pixels at 32bpp) and the viewer is configured for local cursor rendering. | Disable local cursor rendering by VNC Viewer. | Fixed in VNC Enterprise Edition 4.1.7, Personal Edition 4.1.2 |
| 26 Sep 2005 | 40 | Viewer | VNC Viewer will alert the local user to reverse connections being closed before having authenticated, making it possible to "pester" a user by repeatedly connecting to their listening viewer. | Do not run VNC Viewer in listening mode. | Fixed in VNC Personal Edition 4.1.3 |
| 26 Sep 2005 | 41 | Windows Viewer and Server | VNC Server and listening VNC Viewers can accumulate redundant network resources over time, eventually causing them to fail. | None | Fixed in VNC Personal Edition 4.1.3 |
| 26 Sep 2005 | 42 | Windows Viewer | VNC Viewer fails to restore its window correctly when scrollbars are active and window is minimized using the Windows Show Desktop button. | Minimize VNC Viewer using the viewer's Minimize option. | Fixed in VNC Personal Edition 4.1.3 |
| 16 Nov 2005 | 50 | Server | The VNC Viewer for Java applet was signed with a certificate that has now expired. | None | Fixed in VNC Personal Edition 4.1.3 |
| 12 May 2006 | 61 | Windows server | A security vulnerability was discovered. | Upgrade to fixed version | Fixed in 4.2.3 |
If you encounter a bug with VNC Personal Edition, please first make sure you are running the latest release. If the bug still exists, please report it via the appropriate support channel.