I've been using MobileMe but decided to let my account expire and switch back to Gmail. I just set up my Gmail account in Mail following these instructions. Essentially it involves using a [Gmail] prefix and then mapping the Gmail IMAP folders "All Mail", "Sent", "Drafts" and "Spam" to the corresponding mailboxes in Mail.app. I have configured Mail.app to use Gmail's "All Mail" folder as Trash, because I want to retain the ability to delete messages in Mail.app but still have them archived in Gmail. I think it's working, for the most part, but there is one thing that really bugs me. Each time a message comes into my inbox, I also see an "unread" message appear in my Trash mailbox. I suspect this is because I have configured Mail to use Gmail's All Mail folder as the Trash mailbox, as explained above. So a new message comes into my inbox AND into the Trash/All Mail folder - and shows up as "unread" in Trash, which clutters up the interface. If I disable All Mail using the advanced IMAP controls, that doesn't help because then I can't search my archived mail from within Mail.app (this is crucial for me). I also want to retain Gmail's archiving feature, as I said above. Is anyone else having this issue? Is there any way around it? Do you have another, better way of setting up Gmail IMAP & Mail.app?