Windows 7: Win7 issue with ATI HD 4870

the issue with my pc is that everytime i try to run certain graphic intense application, just after few moments the desktop disappears & a blue screen stating a fatal error as well as memory dump appears instead. i tried updating my graphics as well as each & every hardware component drivers to the latest available, but to no avail. i also updated my bios to the latest one but still no good news. the same problem persists when i try to render my scene in maya11, few moments after the render initializes, the desktop screen rips apart as if the video went dead & the same blue screen appears, restarting my pc. i have tried reinstalling my os quite many times now(booting from dvd, formatting the partition, reinstalling), but after a while the error repeats. other stuffs like surfing, music, watching full hd videos, games such as cod2, cod mwf2, cod5, rail sim, ship sim, bia hell's highway work excellently. i keep downloading movies & tuts for days & my pc remains running without any hitches. this problem started just after, a few months ago when i had to use system restore. apart from this my pc works fine. kindly provide me with a suitable solution.

core i7 920
asus rampage II gene version rev 2.xx
g.skill ddr3 1333 2 X 2 gb f3-10666cl9-2gbnq
g.skill ddr3 1333 2 X 2 gb f3-10666cl9-2gbrl
realtek pcie gbe family controller
cm 750 watt psu

graphics - sapphire radeon hd 4870 1gb ddr5 PCIe
os - win 7 x64 ultimate
driver - ccc 10.6

graphixgen, welcome to the forums.

If you could follow the instructions in this link,

http://www.sevenforums.com/crashes-d...tructions.html

and post the required information in the Crashes and Debugging - Windows 7 Forums

Other thread.

~Lordbob