I have a rather annoying and odd problem with my computer.
Whne I try doing some disk intensive work (e.g. deleting a lot of files in one go, doing a spy or anti-virus scan) I get a very high pitched beep, beep, beep sound. This will continue until I restart the computer.
I thought it might be the hard drive I was working on complaining, so I replaced it. Started doing a format on the new 250Gig drive and after about 4% the beep started again!
Anyone any ideas?