I had the same issue (Oneiric), it disappeared as soon as I removed the ['all'] entry from the systray-whitelist that I had previously added for some non-standard systray indicators to appear. Do you also have made such a change?
-- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-power-manager in Ubuntu. https://bugs.launchpad.net/bugs/207583 Title: [hardy, oneiric] Two instances of applet icon are displayed in notification area To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-power-manager/+bug/207583/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs