Originally Posted by wallyglock
once in a while while on line my computer screen goes black for just a second or two.......this started about 2 weeks ago
the screen always returns to normal very quickly and brings up what what you were viewing .
what is this and what causes it ?
1) Check all of the physical connections first - make sure the monitor cable and power supply are securely plugged in to the electrical outlet/power strip and the computer. Also check they are plugged in to the monitor all the way.
2) Reinstall your video card drivers with the newest ones available from the manufacturer's website.
3) Could be the backlight or power supply, as others have stated.
4) if the monitor goes out, use this as an excuse to buy a huge new one. There are a lot of good deals out there right now. If you hook up the new monitor and it does not work, you know your video card is fried, but chances are its either a physical connection worked loose, your drivers or the monitor.