Thanks for reading first off.
I have been having this problem for a while now and i have trying everything i can personally think of short of a new computer to fix it. Here is the run down
When i am on a game (tends to be newer game that have higher graphic output) i get a weird flickering on my screen after a few minutes. It is weird cause it is a solid color, normally black, in a triangle patern with the tip at the center of my screen. I thought it might be my monitor but i was able to take a screen shot, in the game Hitman Blood Money.

It is not the greatest example and i am sorry, but shows what i am talking about. You can see in the upper left part how the triangles show up. This is very frustrating. Generally this is followed by other video problems such as this one here.

You can see that the zoom is going out of where it should be. I have it set so it should be showing my PC stats but in case it doesn't here they are again.
Windows: Windows XP5.1 (Build 2600) Service Pack 2

Memory (RAM): 1023 MB
CPU Info: AMD Athlon(tm) 64 Processor 3200+
CPU Speed: 2001.9 MHz
Sound card: SB Audigy Audio [A800]
Display Adapters: NVIDIA GeForce 6800 GT | NetMeeting driver | RDPDD Chained DD
Screen Resolution: 1280 X 1024 - 32 bit
Network: Network Present
Network Adapters: 3Com Gigabit LOM (3C940) - Packet Scheduler

LPT Ports: LPT1
Mouse: 5 Button Wheel Mouse Present
Manufacturer: American Megatrends Inc.
Product Make: To Be Filled By O.E.M.
:
AC Power Status: OnLine
BIOS Info: AT/AT COMPATIBLE | 09/02/05 | A M I - 9000502
Time Zone: Eastern Standard Time
Battery: No Battery
Motherboard: ASUSTeK Computer Inc. K8V

I have updated drivers and everything, but if anyone has any advise i would be in your debt forever.

Hey KCBear!
Welcome to PC Helpforum!

Can you post the screenshot please?

Blue

Yeah, i put two of them up there, but here is a URL to the IMG
http://ic1.deviantart.com/fs11/i/200...by_Ookamii.jpg

if for some reason that is not working i will try uploading it on another site

Sorry about that. Yeah bad site. Here are the two IMGs that should be above in order. that first is

http://i111.photobucket.com/albums/n...u/problem1.jpg

The second is this

http://i111.photobucket.com/albums/n...u/problem2.jpg

Thanks so much for reading and helping me out. It is very frustrating

I shoud also mention the card works fine in other computers. and it is a 500W power s. in the computer

Have you made sure the video and motherboard drivers, Windows and DirectX are up to date?

Other then that I'd say a heat problem, maybe the other pc has a better cooling/air flow? Test it with the side panel of the pc removed and a household fan blowing air directly on the card.

Thanks, i thought it might be a heat problem, cause i have taken off the side with no help, i will try putting a house fan on the side of the PC and see if that helps out.
If there are any other ideas please post, and i did update BIOS and drivers for everything