Hi.
When I play games in wine, my mouse pointer was always flashing and kept appearing and disappearing. It disappeared when I held the mouse still. And when moved, it was always with some blurred ghosting cube beyond.
I'm using debian, xfce, xfwm4. My wine version is 1.3.34-0.1. nvidia driver version 290.10. linux kernel 3.1.0-1-686-pae.