I was using ATT as my dialup ISP until I recently got broadband. I was kind of fooling around and using Add/Remove to get rid of some superfluous programs. So I clicked to remove ATT. I got a message saying that I should do some kind of configuring, it didn't say what kind, before removing ATT if I wanted to use another way of connecting to the internet. I decided to ignore that and clicked to remove ATT. Now, I can't connect to Firefox though I can to IE6. When I click on my Firefox desktop icon I get a message saying "The connection was refused when attempting to contact the proxy server you have configured. Please check your proxy setting again."
I've tried to find out how I am supposed to do that but haven't figured it out, so I'm coming here for help.

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