At some point early this morning, the SBS server rebooted on it's own due to some issue with an HP sensor in the server.
We are unable to mount the database, with the following error: hr=0x80004005, ec=-2147467259, and events 9518, and 9519 (among others: 4001, 9546) showing up in the logs.
I have tried http://support.microsoft.com/kb/925825
(setup /prepareAD) with the setup file located in C:\Program Files\Microsoft\Exchange Server\Bin, but it just fails stating: "Exchange Server setup encountered an error."
Ran the typical database repair utilities, and the database is in a clean shutdown state. Even tried a backed up copy with the same results, so I do not believe the database is the issue.
Any help is greatly appreciated!