I still see this behaviour once every few weeks, usually only with gnome-terminal nowadays. I'm content to write it off as gremlins at this point as it is no longer interfering with my workflow.
-- Tasks in GNOME taskbar blink at random, breaks Alt-Tab switching https://launchpad.net/bugs/26218 -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs