Outlook won't keep mail on server, downloads twice

[LauraB]

I would like to switch my POP3 account (comcast) settings for Outlook to keep
email on the server. I have checked the box "Leave a copy of mesage on the
server" on the Advanced tab.

This results in messages being downloaded twice. I have them twice in
Outlook, but no messages on the server. Please advise. Is there something
else that I can change to get this to work right?

 

[DL]

Uninstall your integrated anti virus app, reboot your PC
If using Norton or McAfee use the tool on their site to completely remove.
Retest outlook.
Reinstall your AV *without* the outlook integration