I have used thunderbird for many years, and all without problems. But two days ago the IMAP emails waiting in my inbox (which I can see if I log on via the web) stopped downloading to thunderbird. It also stopped sending my emails. I have two separate addresses on two separate domains (although they are both on the same hosting service). the bottom line information says "connected to imap.one.com" - which is the host imap server. I have two different emails using the two domains on another computer, and thunderbird is working fine on that one. I have no idea where to begin - the hosting support desk at one.com have not been particularly helpful - and given that the other computer connecting OK and receiving and sending emails, it's probably not their end that is the problem. Has anyone any ideas?