The bug is definitely related to compiz. I installed compiz 0.8.6 on natty and notification-area works fine
** Tags added: regression-release -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-panel in Ubuntu. https://bugs.launchpad.net/bugs/767095 Title: 1 pixel icons in notification-area-applet for qt softwares (e.g. Skype) -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
