Today while chatting and working in flash I noticed that if I have nothing to delete with backspace or when the Save .fla message appears my tower makes a sound. The kind of ms-dos sound.
This hasn't happened before and my father might have something to do with it.
It's pretty annoying and I would like to know if there is anyway to fix it.

Also I'm downloading a beta game and the p2p stopped at 0.02mb left; how's that for dick-sucking?

I've disable sounds in windows because they annoy me.  So when something happens that normally would make a sound, like emptying the recycle bin, my PC beeper goes "beep."  So I imagine that what you're hearing is a Windows error sound.

The speaker in my tower acted up after building my PC. It kept beeping nonstop so I ripped it out.