sorry, i was a bit tired when i posted! Hopefully i can make more sense now!
When the mail scanner is activated, and i try to send/receive email, i eventually get a message saying the the pop server is unobtainable.
If I deactivate email scanning, I can send and receive ok.
When I check the server settings, they are set up as normal ie: with the isps pop and smtp server addresses, not 127.0.0.1 (and as the previous post states, this is correct with this new version). I am using Kerio Personal Firewall, but i get the same if this is deactivated.
I am not connecting to the internet via a proxy, but will check the settings as suggested in the previous post. I have no other antivirus/antispam or similar running. I havent even upgraded to XP SP2 yet!