From: Computerpilot on 06/17/2002
Sounds like a hardware issue...
I am not aware of any virus that can do this but it is possible for a trojan or hacker...
I would check the device manager (right-click on 'my computer', choose 'properties', then select the 'device manager' tab. See if there are any red 'X's or Yellow '!'s. This would indicate a harware/driver problem and what device is creating it. Also you can check to be sure that your floppy and CDROM are installed. IF they are malfunctioning, it is entirely possible that the device manager will not report it.
As for your display, try using another monitor. Do you get the same problem? If so, then it is a video card issue. Attempt to reset the resolution (right-click on desktop, choose 'properties', then click the 'settings' tab. Choose a smaller screen resolution and try downgrading your color depth to something like 256 colors or 24-bit.
Another possiblity with your screen is that the video card has been set to a refresh rate that the monitor does not support. You might try to bring the refresh rate back to a lower number. On the same screen as I described above, choose the 'advanced' button and then the 'monitor tab'. Try a 60 or lower refresh rate in the drop-down box. Do not set the refresh rate higher unless it is set much lower than 75 or 60 Mhz.
Hope this helps. This sounds like a very nasty problem. I would be interested in learning your solution. Also, I would be happy to give you a litte more assitance via email, if necessary.