I have a Dell 8200. Recently the video card burned out and I had the system diagnosed--it was in fact the video card. I then had them install a new video card for me (it is an ATI Radeon 9550).
When I tried to reconnect my Dell 2000 FP LCD via the DVI cable that I'd been using without any problems before the video card was replaced, the display had a lot of white noise or interference (sorry don't know the appropriate term for the problem). Essentially it looks like a white screen over the display.
I then had the system plugged into a new LCD, which seemed to be OK using my DVI cable. Then I had them plug my monitor into another system and they said the problem was apparent after a minute or two.
Considering the monitor was absolutely fine before the video card burned out and the monitor cost $1500, I wanted to try everything before giving up on it. So I bought a VGA (Belkin) cable and a new DVI cable (Monster). The VGA cable worked fine at VGA 600x800, but was too low-resolution to be workable for me. Any higher resolution setting resulted in a "box" display that was compressed and doesn't look right. I then used the new DVI cable and the white "screen" returned.
A friend of mine is a PC repair man and guesses that my LCD is fine. Can you suggest anything to me considering the monitor worked perfectly before the video card problems?