I have been geeking around lots with the P&H, and there are several places where something is not hooked up properly, such as a bad link to a cell reference.
How do we help you the best with these things? - I assume you make changes every turn anyway, so If I corrected anything now, you'd probably already have a new version for next turn.
If I went through it early next turn, and sent it back to you with the changes, would that help?