Hello, While I am working on my computer, my screen suddenly goes dark with lines flashing across it, the cursor disappears and I can't do anything on the computer. Its an AMD Athlon 64 X2 3800 with a Seagate Barracuda 160 GB hard drive. It isn't the monitor, as I put the monitor on another computer, and it works fine.
More aboutmonitor screen video problem
check your video card and did you use the same cable to test the monitor