The whole modem thing though...You see, the modem has always physically been in my computer, even when it was working normally. I did not use the modem extensively until I came home and began using it to connect to the internet.
The modem was connecting to the internet and working normally, so I wasn't sure how a hardware problem with the modem could exist if it's working; and if it did exist, how it was locking up the computer. There was a software problem with the modem (which still exists) that was not affecting it's ability to work, but it may be locking up my computer. I wanted to fix that to see what it did.
In any case, I did uninstall the modem's drivers and removed it from the computer. The computer locked up again. Since removing the drivers and the modem removed the modem error on shutdown, the error evidently isn't causing the lockups either.
So, I uninstalled the sound card's drivers and removed it. The computer locked up again.
I can't remove the video card because I have no onboard video card, so if I removed the current video card, I'd have no where to hook up my monitor and see what I was doing. I did, however, uninstall the video card's drivers and restart. The computer locked up again.
I think I'm going to have an aneurism.