Internet explorer problems

Here's my the problem that has only been occuring for about 2 days and it's driving me mad!

I have broadband (adelphia to be exact) I still use AOL 9.0 and connect to AOL through using a "non AOL cable/dsl provider" which has worked out fine for me to connect to AOL and also connect to Internet Explorer. Most recently, I must have changed something and I am not sure of what?? If I am on AOL and try to sign on to IE I get an error message indicating that the "page can't be found." The minute I sign off of AOL and try IE everything is fine. I tried being on IE first and then signing on to AOL, switching back to IE and trying to use it gives me the same error.

Previously I never had this problem and was able to run both programs concurrently. Can anyone tell me how to fix this problem? What I may have done. I had a virus a couple weeks ago and things seem to be running smoothly, except for this new problem.

Thanks
Bratt