When this machine goes black, detach the monitor and connect a different monitor.
I have had several LCD screens with this behavior that I had to return for repairs.
It is a possiblility.
I have a problem where i will be working away at my pc and for some reason the screen just goes black. The PC doesn?t reboot or crash and is still running, but the only way to fix the screen is by hitting the re-set button. On rebooting no error message comes up, the problem is especially bad when i try and play a game (Command and Conquer Generals) the pc will load the game and as soon as game is about to play, the screen will go black (also happens with other games) I have run several different memory tests and all show no problem. I have had a couple of error reports after crashes saying that i have bad memory sector and need to run the test, but its a no show. Does any one have any ideas, could it be a driver conflict, there is a D bracket with 4 diagnostic LEDs on the pc but I?m not sure how that works, Any help appreciated. The pc is operating on xp with 512 mb ram and an onboard G force 2 graphics card, could it be the onboard Graphics, all drivers are up to date