I just RMA'd a 9500pro. I emailed ATI support and received an RMA number in two days. I packaged the card and sent it via UPS. I emailed support to verify that my card was received in good order, and received a reply the next day that my card had been received on April 16th.
Website says to expect 10 business days to diagnose and repair problem, then another week for shipping. Supposedly your RMA# doubles as a tracking reference number for your return shipment. However, I checked the number daily and never found the package through the UPS website. To my surprise, on April 23rd, the UPS man was at my door with a replacement video card from ATI.
The letter they sent started like this:
"The original unit was sent in for warranty repair has passed our subjective diagnostics with no problem found. As a precaution, we have exchanged the original unit with a service unit set to factory defaults."
I'm not sure whether this means I received a used unit or a new one. Either way, the card they sent back to me works well (none of the garbled video has returned).
This was my first RMA with any company, and I think it went pretty smoothly. Overall I'm very satisfied. A valid tracking number for the card from ATI is the only way my experience could have been made better. I really don't care if my card is new or used as long as it works.