I can collect email but can’t browse

I have a dial-up account with Earthlink. I have not been able to access the Internet for over three months now. I can connect and collect my email no problem but cannot browse the net.

I have been calling Earthlink technical support but they can?t seem to figure it out. One of them told me it could be because my IE is corrupt.

Is there anyway I can narrow it down to IE? What is the best way to trouble shoot this?

Thank you,