Hello, first of all I would like to thank everyone for the effort put into the project. I have found a quite peculiar behavior when using Xgl/compiz. Sometimes my windows disappear, if i use ctrl+alt+shift+left/right i can end up in an empty desktop and if I keep holding ctrl+alt+shift and move back to the previous workspace the window moves back just as if it had been moved previously. Also, if I move between workspaces applications can disappear, I can see them in expose-mode and the processes are running as they should, but when I click on the application it zooms to the workspace where the application should be.. but it's not there, not on the taskbar and not in the application switcher. They come back after an arbitrary number of rotates though, most of the time it's somewhere around 10 complete rotations (ctrl+alt+shift+left 40 times) .. it could be that i have missed some config-parameter but honestly, I have no idea what that could be. It seems like there is some inconsistency between the way gnome handles workspaces and the way compiz handles them. I've tried searching for similar bugs but i haven't found anything. The two programs that show this behavior most are Firefox (both 1.5 and 2.0), and OpenOffice. I'm running ubuntu edgy with Xgl/compiz gnome (I encountered the behavior on ubuntu dapper too). Has anyone else encountered this before? System: Xorg: xorg 7.1.1ubuntu2 Xgl: xserver-xgl 7.0.0.git.20060725-0ubuntu2 compiz: compiz-gnome                               0.0.13.57-0ubuntu1 fglrxinfo: OpenGL vendor string: ATI Technologies Inc. OpenGL renderer string: MOBILITY RADEON 9700 Generic OpenGL version string: 2.0.6011 (8.28.8) Cheers / Daniel