yeh umm, if u have an HP or Dell or compaq, etc. then you can check on there site and they usally have a defintion for what the beeps mean, other then that, check your motherboard maker.
I had that once, when my ram was bad
http://www.memtest86.com/ might wanna try that, other then that, im not really sure
If no one else posts anything and the mobo maker, or computer maker doesn't say anything, umm I would bet on changing your computer to Win2000, itll be just as fast but it should be much more stable.
might be a virus, i got one like that once, might need to reformat.