Compiz Expose Problem

The Expose works fine, I get all 4 desktops showing up. The issue lies when I try to move a window from desktop to another when in Expose. The whole screen turns black until I release the window. any ideas what I can do about this?

I’m running gnome on opensuse 11.1 64bit, with a nvidia 8800GT 512MB

thanks

no one else with this issue?