I used the combo wizard, I've deleted the form and table and started over, but this problem persists. The wizard steps are normal.  When finished and in form view the pulldown is empty and the shape of the pulldown is one continuous horizontal line and not vertical as usual.  

My source code is:
SELECT [eventT].[eventID], [eventT].[Beam], [eventT].[SAA full denial], [eventT].[SAA partial denial], [eventT].[SAA problem], [eventT].[Terminal issue], [eventT].[MPSS issue], [eventT].[Image issue], [eventT].[Other] FROM eventT;

(How do I upload screen captures?  Don't see an attachment feature in the new conversation box...)