I'm trying to create a query that's based on unbound text and combo boxes (6 boxes total) on a form. On this form I also want the option for a box to be left blank and the query only use the boxes that are filled in. I thought I had the correct criteria for the query but what I didn't notice until after a few runs is that each time I ran the query the criteria in design mode changed. What am I doing wrong and what's the best route for this?