Sorry, it seems I wasn't paying attention; this bug has gone, the problem I have now is the desktop reappearing before the unlock dialog when the screensaver is active (bug 390989).
** Changed in: gnome-screensaver (Ubuntu) Status: New => Fix Released -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/623561 Title: Unlock dialog sometimes triggers without screensaver active -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs