Internet Connection Problem After Mozilla Install

[tgxiii]

I installed Mozilla because I was experiencing major slowdowns with IE. Mozilla works fine (in fact, I like it better than IE). The problem is, all my other programs don't connect to the internet anymore.

-I have a plug-in for Winamp that searches for lyrics online for the song that's currently in play; it doesn't connect anymore.
-dBpowerAMP and Windows Media Player don't connect to the CDDB to get album information anymore.
-Internet Explorer can't open web pages anymore.

The only program I use often that still works is Outlook Express. What could be the problem?

[tgxiii]

I also just discovered that my Kazaa Lite does not connect anymore. No one has any ideas what happened or a solution?