How can I specify a mailbox in Mutt?

["Larry Alkoff" <labradley@xxxxxxxxxxxxxx>]

When I execute Mutt 1.4.1i in Slackware 9.1
 I get an error message that states
"/home/lba/Mail is not a mailbox"
or
"/home/lba/Maildir" is not a mailbox
depending on how I have set the $MAIL.

Both of these subdirectories are set up with permissions as follows:
drwx------    7 lba      users        4.0K May 23 18:37 Mail/
drwxr-xr-x    3 lba      users        8.0K May 26 08:27 Maildir/

How do I tell Mutt that one of these is my mailbox?

I'd perfer to use the Maildir format.

There is a very simple ~/.muttrc which first sources /etc/mutt/Muttrc
and then sets a few colors.


Larry Alkoff N2LA - Austin TX