Mail creates POP account automatically
I'm trying to add a Comcast account to my Mail. Comcast has both POP3 and IMAP accounts and I want the IMAP; I have all the settings info. But when I add an account in Mail, it asks me for the username/password/email address, and then automatically proceeds to create a POP3 account! There seems to be no place to choose IMAP specifically or enter the server info manually - it just goes right for the POP3 based on my comcast email address. How to overcome this?