GNOME Panel Exits on Login (6452649)

After logging in to the Solaris OS, the following error dialog appears:

I've detected panel already running and will now exit

The error dialog prompts you to click OK. If OK is clicked, the dialog exits along with the bottom GNOME panel. The error dialog reappears after a while even though the GNOME panel is no longer displayed. The error dialog might reappear a few times. This behavior is seen mostly on dual-head systems.

Workaround: None.