Installing xorg 1.9 from maverick solves the problem, no more artefacts and glitches. So the issue (regression) is in xorg 1.10.
nominated for release? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/726369 Title: graphical glitches in menu and metacity (natty) -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs