Re: Could use some help - having some problems.
Welcome to the forums mate.
Well, if you reformatted then it suggests it might be a hardware issue. Try taking out the graphics card and re-setting it. Check that it isnt overheating also, and check that all your fans are on, and that there is no dust clogging them up.
Are you getting any artifacts? Like weird objects appearing in game?
Also, try download Driver Cleaner - then uninstal the drivers, clean out any reminants under safe mode, and re-instal.