I have just installed Radmin and am having problems connecting to the remote computer. After the remote computer's desktop appears on the viewer, any further mouse or keyboard strokes brings a screen of coloured vertical lines. Please help.
There is a Hardware Acceleration option in Windows located at "Start->Control Panel->Display Properties->Settings->Advanced->Troubleshooting->Hardware Acceleration", which has the default set at FULL. Try setting it to NONE on the remote (server) computer. This may solve the problem.