After update from Xorg ppa (ppa:xorg-edgers/ppa)
I have many problems with Unity Shell / Compiz.
Preview of moving icons is broken and GTK theme of unselected windows breaks.
Video card: Intel GMA965
System: Ubuntu 11.04
Kernel: 2.6.39-3 – present
My old Kernels: 2.6.38-8 – the same problem
2.6.38-10 – the same problem
Sorry for my english.