[ubuntu] Screen tearing

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http://ubuntuforums.org – I'm experiencing screen tearing in the upper 1/8 part of the screen. I have dv7-1190er laptop(video card is GeForce 9600M GT), OS is Ubuntu 10.10. "Sync to VBlank" is on in "NVIDIA X Server Settings"(both OpenGL and X Server XVideo settings) and in CompizConfig (General options -> Display settings ->Sync To VBlank). It's most annoying while playing video, but it can be noticed while moving windows near upper edge of the screen, etc. I tried installing different versions(latest and 173) of video card drivers. I have the same problem in OpenSuse 11.3 (KDE), but in Windo (Hardware)