Looks like MS has released a mystery update. It appeared out of cycle, not even on the second Tuesday of the month, and it isn't even security related. Below are the quick details shown in the Windows update Console: Update for Windows Vista (KB957200) Download size: 482 KB You may need to restart your computer for this update to take effect. Update type: Recommended This is a reliability update. This update resolves some performance and reliability issues in Windows Vista. By applying this update, you can achieve better performance and responsiveness in various scenarios. After you install this item, you may have to restart your computer. This update is provided to you and licensed under the Windows Vista License Terms. More information: http://support.microsoft.com/kb/957200 Help and Support: http://support.microsoft.com Problem is this came out yesterday and as of this morning, the KB article that should explain exactly what this does is still missing. I'm all for achieving better performance and responsiveness but I guess for now, I'll decline this update? Does anyone have any further info on this? Thanks, Al Puzzuoli Information Technologist Resource Center for Persons with Disabilities 517-884-1915 120 Bessey Hall East Lansing, MI 48824-1033 http://www.rcpd.msu.edu