Black screen on start up

[niteeye]

Black screen with curser in center. Without clicking the mouse, dragging the mouse draws a blue box. Acts like the left click button is stuck. Control/alt/delete-task manager has Skype program running and some times another program. If I end all tasks, computer begins operating normally. Tried system restore to an ealier date would not complete. That was probably from not disableing virus protection. Any suggestion of cause?

 

[gregrocker]

Did you make any changes before the weird behavior? I'd undo them or try System REstore from System Recovery Options.

I would also establish a Clean Boot from Troubleshooting Steps for Windows 7.

If those fail then work through the other steps, report back results.