And when I say I have the monitor, hard drive, and hybernate turned off I mean that I have the monitor and hard disks set so that they should never turn off and I have hybernate set so that it should never come on.

so your power saving options are set not to go into standby, but it goes anyway?
Maybe you should check for spyware etc:
try adaware free version from here: http://www.lavasoft.de/
spybot search and destroy: http://www.safer-networking.org/en/download/index.html
Update them, then scan your computer and see if you find anything.
Do you have antivirus software? If so update it, or try an antivirus scan online: http://www.pandasoftware.com/actives..._principal.htm

Good luck

hey guys

I have a similer problem but even Stranger.

I have a Athlon XP 2200+
Geforce FX 5200
512mb ddr ram

its only started recently, everytime i start windows up its k then i play a game or leave it there for 10mins then all of a sudden the screen starts flickering Black and then eventualy goes into standby but the PC is still on. Later on i started getting wierd lines etc.

Can any1 help.

Since you are using an Intel processor, just to check whether the computer is really heating up, download a utility "Intel Active Monitor" to monitor your computers temperature which can be found at intel.com

Try reinstalling your graphics card drivers, and also check your graphics card fan to see if it's clogged, or if it slows down/stops when the trouble starts.
If you are familiar with the inside of your pc you might want to touch the heatsink to see if it's particularly hot.