I would check the Power settings in Control Panel to see if it's set to cut the monitor. If not, then see if the manufacturer of your video card has any drivers updated for XP released after you bought your card.
Thanks in advance:
Before the new Windows XP Service Pack 2 update, my monitor would just go black randomly. Then, I have to press the "power" button on my monitor to turn it off, and press the "power" button again to turn it back on, and it would work fine until it decides randomly to go black again.
Recently, I downloaded the new SP2 update and now my screen goes black probably 10-15 times a day! The computer is still on, I just can't see anything. Even before the update, this would happen, but only about once a month. Anyone know how to solve this problem?