In article <1154257445.546291.263490@m73g2000cwd.googlegroups .com>,
"altcomphardware" <altcomphardware@yahoo.co.uk> wrote:

>
> At first I didn't uninstall the drivers for my old Sapphire Ati Radeon
> 9800 Pro. It artifacts so badly I can't see anything even in Windows,
> and my motherboard doesn't have onboard graphics.
>

That is another hint for us. So both the old video card has
artifacts and the new video card has artifacts. Hmm. What
are the odds of that happening. Maybe the common factor
here is not the video card ? Like maybe the motherboard ?
Or maybe not enough computer case cooling ?

At least try the tests I suggested in the other post.

And visually inspect the motherboard, for anything
suspicious looking. Like leaking or bulging tops on
the capacitors (aluminum cylinders with plastic sleeving).

And remember that there is a limit to how much diagnosing
we can do over the Internet, so we cannot guarantee a solution.

Paul