Recently purchased an HD Radeon 4850. Worked great for the first week and a half then suddenly, it would randomly shut itself off and the VPU recovery would start. Each time it does this, it shuts off FFXI. This has happened before when I just booted my PC and clicked on Firefox. I never had any issues with my PC until I got this card. I have the CCC 8.9 drivers, did the same w/ the 8.8 drivers. I thought it was the card, returned it to the store, and the new one is doing the exact same thing. I initially had all the settings maxed (no OC), now I'm running on the defaults and 10 minutes after I installed the new card, VPU error again.
OS: Windows XP Home SP2
PSU: Raidmax 500w
CPU: AMD Athalon X2 3800+, 2.0GHz
GPU: HD Radeon 4850 512MB with 8.9 CCC drivers