Stephen,
If you are using VFP5 or 6 set BoundTo=.t.
>I had a similar problem handling numbers in the combo boxes. What I had to do to fix it was convert it to a string. I give my combo box an initial value which I convert to a string. I don't think VFP handles handles number very well. When I was selecting the different entries it was returning the record numbers. I hope this helps.