Frustrating anamolies on 8800 gtx

[dagoo7]

I have been experiencing intermittent but persistent graphical anomalies with only certain games for the past year with my 8800 gtx. In certain games, after playing for awhile, I will experience either certain character models or buildings throwing off crazy beams or little jagged squiqqly green lines (most noticeable on screen overlays), sometimes both. This problem seems to go away for a brief period when I change resolutions, but then happens again. Lowering or changing other ingame settings seems to have no effect. I have run nvidia monitor and it is clearly not an overheating issue.

What is frustrating is that this only occurs with certain games. Many games, like LOTRO, borderlands, champions online, most fpses, I can run at max settings with no problem. However, with other games, most recently Dragon Age and Risen, I keep having this problem. I even ended up playing Fallout 3 on console as the green lines were so bad in that one.

I am hardly a tech guru and my knopwledge is limited, bu I always keep updated to latest drivers and have even tried going back to earlier ones in several cases, but no effect. Is my card bad? Or is there some setting on the card that I have screwed up and can modify through ntune? Any input appreciated.

[ShyguyXPC]

clean out your drivers for your video card (delete them, use a driver cleaner to clear out any old bits of the Nvidia Drivers) then install latest version for your OS.

make sure the fan is clean of dust to prevent overheating, make sure fan is running.

normally the stuff your getting sounds like it could be overheating or the card dying, but since you mentioned it still happens after lowering resolution and settings, sounds more like a software issue. or possibly the Power supply not providing enough power.

what Power Supply do you have in your system, is it a no name, generic name, name brand, etc...Make, Model, and wattage of the PSU would be nice to know.