So, my desktop quit connection to the 'net yesterday, I've been trying to get it going again for a couple hours now, and finally broke down and decided to ask.

What happened:
For a couple days, the computer threw a warning box when I first opened IE that said no connection was availible, work offline/try again. I hit try again, and it worked.

Now, it just quit going online. IE doesn't connect, nor does any other internet based (AIM, MSN, bittorrent) program.

The computer I'm using now is on the same hub as the crapped out computer, and these two can still share files over the network. This one, obviously, still connects to the internet just fine.

In short, what can make a P3 computer running 98SE work on the network but not online?