Although forewarned of possible problems with Vista SP1 due to incompatibility issues with some drivers, a number of users have reported issues the software giant apparently did not foresee.

"I have installed vista sp1 today now i have no sound and my dvd drive does'nt work nice one microsoft... I can see that testing really worked now how can i uninstall it," wrote butters286.

Another user, SeppDietrich, encountered installation problems even after downloading the latest driver. "What a disaster! It exiled all of my Nvidia drivers to the Bermuda Triangle..they're simply all GONE. Okay, no big deal, go to the Nvidia site, download the latest drivers, install and nada.Zip, Zilch, Nothing changes. Windows Update keeps telling me I have an available update to install, an Nvidia update dated 12/7/07..which is OLDER than the Nvidia drivers I just lifted off their site.

"Even after uninstalling the update, "I *still* have no video drivers, can't even reinstall the latest from Nvidia after the uninstall and reboot," SeppDietrich continued.

Meanwhile, other early adopters of the service pack wound up with the dreaded "blue screen" that indicates a critical system error has occurred.

"I downloaded it via Windows Update, and got a bluescreen on the third part of the update. Took 5 hours to "revert to previous". So I downloaded the package version, and tried that. Same bluescreen. Same hours," wrote Iggy 23

In addition, the University of Pennsylvania recommended that its faculty and students not upgrade their computers to SP1. The school said it would support the updated OS as pre-installed software on a new system, but suggested "strongly" that others "adopt a 'wait and see' attitude" about the service pack and continue to use previous versions of Windows XP and Windows Vista.

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