IMAP reports it needs my incoming email Password again and again?

I automatically retrieve my email every 15 minute from my imap yahoo account onto my Motorola Q. For a year it worked fine. In the last month or two I get a pop up screen asking for my incoming password. This happens over and over. Most of the time I ignore it and at random times it reterives my email just fine. It's intermitant. I suspect something has changed at Yahoo, HELP!!!

IMAP reports it needs my incoming email Password again and again?
I have the EXACT same issue (Motorola Q + Yahoo IMAP) and am seeing the same behavior, and at the same time you described. I've tried deleting the Yahoo IMAP account on my phone and then re-creating it and sometimes that works, but then stops working again. In an emergency, you could try that to pull your email off the server, but not a long lasting solution indeed. I find this equally frustrating. If I figure out what's wrong I will re-post (and hope you would do the same). Since we are both having the same issue at least you know it's something not unique to our phones or yahoo accounts.