That seems to have helped but I'm not entirely sure it's restored everything. I'll continue testing.
I may have answered my own problem by reading the manual :) There's a note about clearing Outlook Cache after restoring an IS. I'll do another...
I've got Acronis Recovery for Exchange (ARE) installed on my windows 2003 r2 exchange 2007 box. I have both mailbox and IS backups going nightly....
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