Actually since you said it went away with karmic I'll leave the bug Incomplete, hopefully the original submitter can see if karmic fixes it as well.
** Changed in: xorg-server (Ubuntu) Status: Confirmed => Incomplete -- "Tab" key sometimes get stuck after switching windows with alt-tab https://bugs.launchpad.net/bugs/365236 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