Does anyone else have an issue with screen flickering in outdoor scenes?

ATI - HD 4870 X2 - Catalyst 11.2
Windows 7 64bit
Thermaltake 1200 Watt PSU
8 GB DDR3
Q9650 CPU

It's an issue with Crossfire/SLI. Lots of people are experiencing it; there are a lot of threads about it. So far playing windowed mode seems to be a workaround. Hopefully they will issue a patch soon that will address it. Then they'll implement DirectX 11 support and add unicorns and rainbows.