I just verified that it happens in UT2004 in windowed mode, and there were no popups. Attached is a demo file from Nexuiz. I don't know how to view them, but if someone else does, you can see what is happening. The same thing occurs both in Windowed and fullscreen UT2k4.
** Attachment added: "2008-04-30_15-11_hydronexb3.dem" http://launchpadlibrarian.net/14051983/2008-04-30_15-11_hydronexb3.dem -- Fullscreen games flicker in Ubuntu (GNOME only) https://bugs.launchpad.net/bugs/224893 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs