I've seen similar threads on this, but no answers yet, so I thought I'd start a new one. I set up my POP3 account, correctly, on the Droid, and everything worked fine for a while, then it just stopped receiving email. When I go to Account Settings and check the incoming server settings, it just gets stuck. If I just pop the battery out and restart the Droid, it immediately starts getting email again, so it's clear that the security and port settings are fine. This looks a lot like a bug. Unless someone has another idea...?