A few days ago the Archive button in Mail.app stopped working. Has anyone else had this happen or have any idea how I might troubleshoot this? A bit more detail: I have Mail.app set up with two accounts - one Gmail IMAP account and one other IMAP account. This problem happens with both of them. Highlighting a message in the message list and clicking the Archive button does nothing. Ditto with ctrl-clicking the message and choosing "Archive" from the context menu; HOWEVER, opening the message in its own window and clicking the Archive button from the message's toolbar works fine (I added it to that menu bar) This morning I completely reset Mail.app (deleted the /Library/Mail/V2 folder) and re-added my accounts. The Archive button functioned normally for a little while after that, but has since returned to being non-functional The only third-party Mail plugin I'm running is Mail Unread Menu (http://loganrockmore.com/MailUnreadMenu/). I've tried disabling that and it doesn't seem to make any difference. All the other toolbar buttons are working fine - delete, reply, etc. I'm wondering if this is a problem in 10.7.2? Apologies if anyone else posted about this, but I haven't been able to find anything about it here or using Google. My system: Macbook 2.16, 2 GB RAM, Mac OS X 10.7.2, Mail.app version 5.1 Thank you for any help or ideas!