My 4850's are not working in crossfire.
Both my 4850's have been tested alone and they work perfectly fine. However, when I try to install and run them in crossfire, I get visual corruption, artifacting, and system crashes and shutdowns like crazy.
At first, the problem only happened with ATI's drivers, and using the ones provided on my installation CD fixed the problem.
After reinstalling Vista onto my second drive due to the first one failing however, even the drivers on the CD will not work. I tested both cards individiually again and they work. This time, when I install the driver for the second card, towards the end of the insatallation I get the following error message:
This happens with the cards either way around. Whichever is in the first slot works fine on its own, but the drivers never seem to install correctly for the second card.
W.T.F????
<---- System Specs. My 3850's in crossfire used to work perfectly before these 4850's.