I just switched over to IMAP on my Gmail account (have been using POP for forever) and I got everything working fine, except one thing: I've applied rules in Mail.app so they sort into their corresponding folders on the server (or Labels, in Gmail terms). For some reason because of this, certain messages are automatically marked as read. This doesn't happen to messages that aren't sorted (ie, they stay in the Inbox > Gmail). The strange thing is, this only happens to certain messages that are sorted. Anybody have any idea?