After downloading update xserver-xorg-vide-intel - 2:2.6.3-0ubuntu10~bug359392~3 (amd64), problem seemed to disappear for me. I'm working on GMAX3100, on KDE with all visual effects.
After downloading update xserver- xorg-vide- intel - 2:2.6.3-0ubuntu10~bug359392~3 (amd64), problem seemed to disappear for me. I'm working on GMAX3100, on KDE with all visual effects.