Reading Jeff Beehler’s blog posted a thread here stating that the VS2008 VPC’s are going to terminate prematurely because of an OS expiration date of Nov 1st 2007.
If you’re using any of the VS2008 VPC’s you’ll want to read this. You’re going to have to back up your TFS database, and then restore it into a new VPC that is being created as we speak and is expected to be live early next week.