FWIW: Those two errors in Event Viewer...relate to ATI video card/chip.http://www.eggheadcafe.com/software/aspnet...stop-error.aspx
I have 2 ATI cards and I find that things go wrong when I allow WinUpdate to "update" cards which were working well, so I would agree that you may want to try rolling back to your previous driver.
If that doesn't work, then I would try updating the drivers...using the Dell website.
If that doesn't work, I would remove all ATI files from the system, via Add/Remove Programs...remove the drivers from the card/chip, via Device Manager...and just allow XP to redetect the card and install the original drivers for card/chip.
I've never heard a beep in conjunction with using my cards...it may be the system is trying to tell you that the card is failing.
Edited by hamluis, 09 April 2008 - 11:42 AM.