I did a reinstall of Windows XP Pro, and now when I do something like
go to close out of Agent, I get a beep from the case speaker. This
didn't happen before. I tried shtutting sounds of in Control
Panel>Sounds, but this beep still happens. Any idea where I turn it
off or is it a sign of a problem?

I just found out the problem. I reinstalled Windows and for whatever
reason, the drivers for my sounc card didn't load. I just loaded them
manually and the beep stopped. I guess since it couldn't go through
the sound card, it was going through the case speaker. Thanks anyway.