it isn't proxies - not relevant for dial-up connections.
there are so many variables with an 'offnet' connection, it is hard to suggest a solution - especially as you say you 'used to be' with AOL, which is notorious for not uninstalling, properly.
- I don't know if this link will help, for a start?
http://www.enternetnow.net/support/aol-uninstall.asp
