Hey chaps just got some stuff to copy paste in to here from a mate. I told him to post it himself but hes scared of you lot 
To add to the above, he also had "display driver has stopped working" when booting in to windows, and regular crashes. A fresh windows install didnt resolve this. My theory is the motherboard is having a problem, but he wants a second opinion before commiting.

Hey guys,
about a month ago I noticed that my textures and certain shaders started bugging on my graffics card where I would see little black squares all over certain areas of games.
As the month wore on it got progressivly worse where I would get blue screens due to my display driver crashing, no matter how recent the drivers I used the problem still occured and I put it down to my gfx card.
This week I purchased a much needed new PC tower along with a new Nvidia Geforce GTX 560 TI gfx card and after trying reinstalling windows on a fairly old motherboard and updating the graffics card It still crashes with the same error.
Just wondering If this is now some sort of conflict with the Motherboard PCI-E slot and any card I attempt to put in it. The mother board Driovers are also up to date.
Anyone who had or has this problem and can come up with a solution, any help would be muchly apprecicated before I decide to grab a new motherboardthanks in advance.
My pc specs are as Follows:
OS: Win 7 64-bit
Processor:AMD Phenom II X4 955 ~ 3.5GHz
Ram: 4X2GB Corsair
Mother Board: Gigabyte M52l - S3P
PRevious Graffics Card: Radeon 4800 series
New Graffics Card: Nvidia GTX 560 TI
PSU: Corsair 650W
Hard Drives:
Hitachi 1TB
Hitachi 500GB (Windows)
Samsung 320GB
To add to the above, he also had "display driver has stopped working" when booting in to windows, and regular crashes. A fresh windows install didnt resolve this. My theory is the motherboard is having a problem, but he wants a second opinion before commiting.