[Dovecot] Question on moving folders

Is there a way to move an imap subfolder up one level? I have a bad mouse and every now and then I have accidentally dragged an imap folder on top of another folder. I am unable to get the original folder back up one level. I've tried using several clients and I can't get it to work with dovecot. I keep getting a "folder already exists" message.
I'm guessing dovecot still sees the original folder before it was moved. Any tips... besides getting a new mouse?

-- Andy