Description of problem:
Since the upgrade to yesterday's rawhide (with a full reboot afterwards), I've
had two occasions in which my Gnome panels, that are set to auto-hide, would no
longer unhide.  In one of the cases, the problem went away by itself.  In the
other, I left it rest all night and it's still broken.  I suspect dbus because
the first time it happened other dbus-using apps also stopped working
temporarily, and they all came back at about the same time.

Version-Release number of selected component (if applicable):
dbus-0.90-8

How reproducible:
No idea :-(