The good news is that it's very easy to fix the problem. If after upgrade to the v4.0 Beta/RC you have discovered that your registered computers are no longer there you should:1) Close the VNC Manager2) Copy content of the following folder %USERPROFILE%\Application Data\Smart Code\VNC\Manager\ to %USERPROFILE%\Application Data\SmartCode Solutions\VNC Manager\3) Start the VNC Manager. Kindest Regards,SmartCode Solutions Support