Comment on Mail Unread Menu

@ bitnix:
I suppose Mail Unread Menu works only when Mail.app is open.
If you want to check your POP account without opening Mail.app, you may try MailWidget:
http://osx.iusethis.com/app/mailwidget
It checks your POP account everytime you activate the Dashboard or periodically (every 5 minutes or every 10 minutes, for example).