IMAP path prefix, Mail and Apple Mail To Do
I have three IMAP accounts set up in Mail, which all work perfectly as long as the IMAP path prefix in the Advanced settings is blank. However, I'm constantly getting a dialogue box saying that Mail needs to change the imap path prefix to INBOX (which is apparently what my mail server reports it as) in order to create the Apple Mail To Do folder on the server (which I neither want nor need as I have set Mail to store To Dos etc. on my mac, not on the server).
If I let it change this setting, I can suddenly no longer see any of the messages inside the folders in my mail accounts. I can see the contents of the Inbox, and the folder structure, but the folders all appear empty. If I check the account online via webmail, all the messages are still in the folders.
I've spent all day checking Google, Apple Support, my hosting service's support pages and various blogs and hints sites, but nothing they have suggested has worked.
Is there any way at all that I can either get Mail to stop trying to create the Apple Mail To Do file (and hence the dialogue boxes to go away), or to get my folders working with an IMAP path prefix?
One point that might be of interest - my three accounts all show up in Mail as 'inbox' icons underneath the top-level Mail inbox icon. I half remember somewhere that IMAP accounts were supposed to show up as separate top-level 'globe' icons, but I can't get mine to do that. I've tried creating new accounts from scratch but they still show up as inboxes. Not sure whether that's relevant or not.
Happy to supply any further info required. I can get at the various mail files on my hosting service but don't know enough about what I'm seeing to do anything without instruction!
Best,
C.
Mini, 1.83GHz, 2MB RAM, Mac OS X (10.4.10)