Anyone have some old school Mac OS X knowledge for me? My grandfather has a G4 iMac still running OS X 10.4 Tiger, and his POP email account in Mail.app is showing 1 unread message in an empty Trash folder. This is for a POP account that's no longer his primary but is still checked. I don't have an option to rebuild this Trash folder, though the other account's trash folder does. It also shows an arrow to "unfold" it, but there are no other folders within. Any ideas on how I might solve this?