[damien c]

I have just rememberd that the ati 5770 had a similar problem, and the card was faulty and eventually got refunded.

What i would do is to if possible take the graphics card out of your pc if it uses a seperate, card and not onboard and test that in the pc 1st.

Then if that works with no problem i would contact the company where he bought it from and find out how long the warranty is as iirc they should have about a 3 or 10 year warranty.

But it depends on where it was bought from as if it was of ebay you have a problem and would have to deal with ATI, and not the person on ebay.