AFAIK, "rowsource= one of my tablenames" should be "rowsource= alias.field".
I am grateful to you and the others for the help. This is working now.

1. My rowsource tables all have only one field. When they have only one field, VFP automatically uses that field even if it is omitted from the rowsource property. "rowsource= one of my tablenames" works for simple one-field tables only. When I use multiple-field tables, I will follow your advice.
Thanks.

2. Would you please explain AFAIK - I couldn't find the acronym on the list.
Possibilities:

All Fields Are In K........
Add Fields As Is Known
Any Form As I K....

Thanks again.