"Topic!" Error after switch form AOL to Bellsouth/AOL

I had AOL for a while and signed up for the offer where you get both AOL and Bellsouth DSL. Certain links (including those which are supposed to lead to an email to contact someone) bring up a dialog box which says "Topic!". Certain links used to bring up the AOL screen and try to start dial-up to reach the destination of the link. How could this be fixed so that AOL could be disconnected from Bellsouth fully?
(P.S.-The reason for signing up with the joint internet services was that it was cheaper than signing up with Bellsouth alone by around $8.00 per month.)