[arch-general] Very weird window resize or move behavior with awesomewm

I am not sure where i should ask question like that, please tell me if its shouldn't be there. I have installed Awesome WM, and now i get very strange artifacts while resizing or moving windows OR having mplayer on full screen gives a lot of huge lines and flicker, making it impossible to watch movies. Nvidia 9500m proprietary driver. -ck kernel(vanilla has this issue too) Thanks for reading ~David