Can anyone help me and suggest what's gone wrong with one of my POP accounts in Mail? I was curious that I had not received any messages on one account for a couple of weeks, but it's mainly mailing lists that go to that account and traffic is sometimes light so I didn't notice sooner. Once I realised I'd been missing postings, I eventually discovered a couple of hundred messages on the server that hadn't been downloaded by Mail, but I can't work out how to get them downloaded! If I select Get Info on the account in Mail, it tells me there are 198 messages on the server, and they are all marked as new, ie not downloaded yet. But checking for new messages results in no messages being detected. 
I've tried disabling and re-enabling the account and changing the passwords to try to get Mail to recognise a change and check the account properly, but no luck so far. Any better ideas?
I've tried disabling and re-enabling the account and changing the passwords to try to get Mail to recognise a change and check the account properly, but no luck so far. Any better ideas?