I hate ATI for several reasons.
Yeah,
1.Their support sucks (my old 9800 pro i told them that things like power supply werent the problem (550W)and they came back and said in their list of suggestions, something along the lines of 9800 pro needs 350w power supply to run effectively. idiots)Also eliminated several other things that weren't affecting it and they told me to try them

not to mention that their reply took 2/3 weeks

2. from sapphires email (Please make sure that there is enough cooling of the card and the fan is running smoothly.) Sure they sdhould have proper cooling out of the box.

3. Card was over heating, but do you think they told me that might be the problem :-/ (except for what they said in 2. which i explained there)
but anyway these are my own personal experiences and after 6 months of gfx card crashes i took it back to the shop and replaced it with a 6600gt, no problems since.
first and last time I buy an ati card, nvidia all the way now, and ive got half decent open gl :o
these are my own experiences but to me if you can't get decent tech suport why waste your money on their products.