I'm unable to open web pages in any browser (Firefox or IE) - I get the message "server not found." I have a little portable router I plug into my USB slot and I just had it checked; it works fine. I can use it to connect, but no pages will open.
I've pinged my IP, which works (not really sure what that means, honestly). I don't have Norton, and I've disabled my firewall and my security software (Security Essentials). Got any ideas?