OS X Mail client & Mobile Me

[Burble]

On my Dell Mini 9 I'm running OS X which I updated to 10.5.7 this morning.

Since the update Mail.app has decided for me that I must have my Mobile Me email account configured. I don't want it there! I only want my Exchange account and before the 10.5.7 update that's what I had and I was happy.

It lets me remove the Mobile Me account but as soon as I reopen Mail.app it comes back. Grr.

Looking in System Preferences / Mobile Me I don't have it set to sync anything related to mail. Mail.app lets me remove the Mobile Me account but once I close and reopen it, the account is back.

I know I could remove my Mobile Me account to work around it, but I want my calendar, contacts and keychain to sync so I'm not going to do that.

Any ideas?

Failing that, how's about some suggestions for an alternative mail client? I like Thunderbird muchly, but it sucks at handling IMAP accounts.