Some users have experienced an audio driver problem after installing Service Pack #1 on their Windows Vista computers.
A Dell Digital Life Liason said, “Should you see this update appear, *do not* install it.”
Many users from the Dell customer forum who installed it says that they see a “Code 10″ error after rebooting.
Those who use Windows Vista on an Apple machine using Boot Camp may also be affected. One of the posts at the Apple Boot Camp discussion forum says, “I have a MacBook Pro with SigmaTel sound card, and I was stupid enough to install this update. After installation, sound is gone and Windows started to say ‘no audio output device.’”
Source: ChannelWeb

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Oh noes.. I guess I’ll let my techs know because I know we are going to get calls on this one. Why microsoft.. Why?
Dell <– Key word ! DUH! its a POS REFORMAT it take off the stupid partitions and install it fresh solves all the problems ! I have Vista with all of the SP1 and the updates and Guess what DELL suckers ?? I have NOOOOO Problems HAHAHAHA!! DUH SELL the DELL!