Level 1

Why would Inventory Valuation Summary and Balance Sheet Details be different?

I am unable to find my old notes.  Our Balance sheet and Inventory Evaluation Summary amounts do not match.

Inactive items do not have quanitites.  Inventory asset account has not been used in any inventory adjustments.
There are old Journal entries that used the Inventory asset account but the offsetting entries zero out.  We have a small balance in Open Equity account (which I believe we need to adjust to retained earnings).  There are no future dates on any transactions.

What am I missing?