[SLUG] Mutt asking to move messages to mbox

[amos@xxxxxxxxxxxxxxxxxx]

I use mutt sometimes to check an IMAP account.
Whenever I ask to view another mailbox mutt asks me if I'd like to move
messages to ~/mbox, sometimes I get confused and answer "yes".

I couldn't find a way to prevent mutt from asking this - is there such
a way?

Thanks,

--Amos