[pgwill]

As a new user, I hope I'm following the guidelines
1) Since last Tue, incoming mail is not reaching me. Specifically, the incoming server won't keep to pop.ntlworld.com and keeps reverting to 127.0.0.1.
2) I have cable TV - no problems
3) I have followed the ntl tutorial to check the servers etc (which amends to pop.ntlworld.com). OE then demanded my username and password, which it then rejected. I spoke to Customer Support, who had me remove the mail server access, and reinstall. This worked until I logged off the PC. When I next logged on, pop.ntlworld.com had reverted to 127.0.0.1
4)I live in UK. Windows XP3. Using cable modem. PC is not part of a network. Have McAfee Security Center, latest version, installed.

Any suggestions?
Paul