G'day everyone

Just downloaded The Bat and set it up with my mail account details.  I can send mail, but I can't receive.  The log says:

2008/05/04, 20:16:52: FETCH - connected to POP3 server
!2008/05/04, 20:16:52: FETCH - Server reports error. The response is: -ERR Invalid command.
2008/05/04, 20:17:09: FETCH - receiving mail messages

I can get mail using Thunderbird, Windows Live Mail and Outlook Express using the exact same settings.  What's wrong with The Bat?

Thanks
Samuel