Bug confirmed on new install of Ubuntu 12.10 Quantal.
Creating a new user, logging with XFCE session, selecting "default settings" (instead of "empty panel"), the bug can be reproduced (either using Alt-F2 or running xfrun4 from terminal).
Bug confirmed on new install of Ubuntu 12.10 Quantal.
Creating a new user, logging with XFCE session, selecting "default settings" (instead of "empty panel"), the bug can be reproduced (either using Alt-F2 or running xfrun4 from terminal).