Issue with combo box in form

[57chevy]

I converted a small, very basic Access 2000 database to Access 2003. The database uses a form for Order details, which contains two combo boxes - 1 for principal name; 1 for customer name. After the conversion from 2000 to 2003, the dropdown list does not display the values (in neither of the combo boxes) . However, when I click within the combo box dropdown area, the value - as it should appear - is populated in the field. I would appreciate any help with getting the value list to display. Thank you.

[alcoool]

I think yhere is a problem with the query from the combo box
I think that there are 2 ways to solve your problem
1.
Try to recreate the combo box
2. enter the proprieties of the combo box /data/row source and rebuild the query