Hi Richard,
I'm using 2010 for a basic project tracking DB.  I have created a few combo boxes on the main user form to control other fields.  Example would be if the user selects his/her division the supplier options will change using the query method shown in this lesson (307).

My problem is: My form works fine on its own with all the combo Boxes referencing the query I set up and also running after update code.  When I add the form to a Navigation form and open I get a pop up box saying "Enter Parameter Value" with the following reference "Forms!ProjectsF!AccMgrFilterCombo". Any ideas on how I can correct this?

Thanks
Jon

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Reply from Richard Rost:

That prompt usually means you have a form or field name spelled wrong.