I have acutting motion or flickerin when maximize windows, display unkown problem

Hi all

i search to many forums to find the correct name for my problem but i didnt
i will try to describe it

after formating and installing windows vista 64 bit or installing windows 7 64bit

every thing its ok

the problem start when i set the themes to areo ?

My problem is that there is a very little slowwnes while I am opening a folder or clicking its section.For example: when I am open ms word 2007, it does not open quickly and it does not open late at the same time, but there is a little slowness when it is opening.When I click its option like page setup, view or anything, computer
waits very little time. As to game, it is good. I can play the goodgames, such as farcry2 and fm09 easily

i fell that when i open my computer icon that the window open slowly ( in cutting move ) in the upper title bar its take 2 seconds
is this thing flicker ?

its happen only when maximize windows and little in minimize windows

i tray to change the frame rate to 60 its work fine for 5 minutes and return back ?

i update the bios , update the drivers . nothing fix

is this hardware problem ?

note :this problem is more appearing in windows 7 than vista

http://www.youtube.com/watch?v=xoL2dy1V7Is

Sony vaio aw290
2.6 pro
512 9600 m gt
4gb ram