Aero Lags when open new programs


New Member
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?


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

Nobody? =\

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