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Lt. Commander
Join Date: Dec 2007
Posts: 120
# 2
02-06-2010, 06:50 AM
If you have Catalyst AI enabled, make sure it's set to basic instead of advanced (as the latter does not work with Crossfire). Beyond that, just make sure you have the latest drivers and I imagine it should work. My 5770s work without issue.

Some users have also suggested disabling dynamic lighting for Ati issues, so that might also be worth a shot.