Plz Help: Strange Screen Problem

Hi

Please have a look at my screenshot. I get this kind of error randomly while playing 3D games like Doom3. The same problem reoccurs even when I restart(windows restart) my PC but disappears if I switch on my PC after a complete shutdown. The problem started recently when Ive upgraded my PC.



My Specs:
AMD Barton 3000+ 333
MSI ATI Radeon 9800 Pro 128MB (Cat 4.8)
nvidia nForce2 mainboard.
1 GB (2*512) PC2700 DDR
Win Xp Pro SP2

My hardware doctor show that my 12+v is out of range. Is this the cause?
I reckon the fault is with my new ATI 9800 Pro. what do ya think

Plz help..

 

Looks more like video driver problems.

Perhaps you should explain what you did to "upgrade"?

If you upgraded the motherboard etc without a full and complete reinstall of WIndows you can expect this and more issues, as an example.

 

Sorry to use the word upgrade..infact Ive brought a new Motherboard, CPU and Video card. The old ones: RAM, HDD, PSU etc

I did a clean install of winxp pro..
but the instalation failed(the same problem..at format screen)when I tried to install with ATI 9800. So I've used my old geforce 4 to clean install winxp and plugged in the Radeon later. I use catalyst 4.8 and
atioglxx.dll(v4.9) just for better performace in Doom 3.

Thanks in advance