I'm running mail on a 17-inch [Rev. A] G4 PowerBook using Mac OS X 10.2.6, with 512 MB RAM and at least 40 GB of free disk space.
For some reason, mail won't show the mailbox list in my Administrator account, even when I choose View > Show Mailboxes from the menus, but it will show the list in my non-Administrator account.
I don't know if this is relevant, but I had to force-quit mail in my Administrator account this morning when trying to import my Yahoo! Mail because when I tried to move 500 messages into my "Yahoo! Mail" mailbox in mail, mail instead tried to open all 500 messages, grinding everything to a snail's pace. I tried to exit, but failed, and had to force-quit.
I don't know if it was working properly before that, but when I then tried to show the mailboxes using View > Show Mailboxes, nothing happened. Everything else worked fine, but mail just ignored this command.
However, mail continues to show mailboxes properly using the same command in my non-Administrator account.
What should I do to get back my mailbox list?
--DekuDekuplex