Windows 7: aero problem

hi everyone
i installed 7600.16385 x64 (zukon) all hashes are fine
after install i noticed a little problem and its getting annoying
when i maximize any window by double clicking on it i get some black bars that appear in less then a second it is hardly noticable but still there
after many tries i have managed to take a screenshoot




can someone try to maximize any window and check if they get same problem,
befoure this release i was using 7600.16385(wzor) and i dont remember having this problem.
i dont want to reinstall if this is a comong bug that many of you have.
so can someone please verify this.
thank you

maybe that's the aero stutter people have been talking about. it happens to me too sometimes, but only on a weak laptop.

The laptop where it happens has the following specs:
Pentium Dual-Core T2390
Nvidia Geforce 9300M GS 256MB GDDR3
4GB DDR2-667

On my other laptop (Core 2 Duo T7300, Nvidia 8600M GS, 3GB DDR2-667) it doesnt happen, and also doesnt happen on my desktop (Core 2 Duo E6600, ATI HD3870, 4GB DDR2-800).

so maybe in my case it happens because of the weak CPU.

thanks for reply i will do a search on "aero stutter" to see if its any similar to what im having


and here are my specs
mobo:ASUS P5Q PRO
GFX:NVIDIA 8800GTS(G92) 512
RAM:4GB DDR2 1066
CPU:INTEL C2D E8500

noone of components have ever been overclocked