ProfK:On my Vista dev machine, I've now twice come in to work in the morning to find my MSSQL service not running.
Sounds like something Vista would do. I have not experienced your exact problem, but I run Vista on my notebook, and it does some wierd things (Not allowing VS to attach to process unless you "Run as Administrator", for example) in the name of "Security". It's a weird animal, that one. 
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