Windows 7 Aero Lags when open new programs

Yuan

New Member
Joined
May 9, 2009
Hello, I have Win7 x64 RC1 installed on my pc and everything is working fine, except for the Aero. When I open new programs there is always some lag when program window is rendering. But when I turn aero off, everything works fine.
I tried to show the problem below



In windows vista x64, aero worked very smoothly. Anyone can help me?

Config:

Asus P5Q
E8400
HD4850 (Catalyst 9.4 WHQL Certified)
P5Q
2x2gb DDR2 1066

Nobody? =\
 
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