Yeah we have called them numerous times but we can't get any help. The main problem is that Adelphia was taken over by Time Warner Cable so the adelphia server is phasing out. The other problem is that while you are on the phone with tech support, you are the only person with a Mac. EVERYONE at tech support is running XP or Vista. It SUCKS!
Try these settings for Road Runner:
Incoming POP mail: pop-server.XX.rr.com
Outgoing SMTP mail: smtp-server.XX.rr.com
where XX represents your State like in New Jersey it is nj. You can call Time Warner, Road Runner support and ask them what is the appropriate url for their POP and SMTP servers. Tell them that you were an Adelphia client.