Filter in Form

[David]

I have form that has a dropdown selection list for the
vendor name in the form header. When a vendor is selected
from the list, it filters that record from the entire
vendor list and fills in the vendor information into the
form (name, address, city, etc), in the details section of
the form. The database sits on a network server, and all
computers in the office have a version of access. My
problem is on one of the computers, when you select the
vendor name from the dropdown listing, it will not filter
the selected record from the vendor listing. What might
be causing this problem. I cant see it being the database
itself, as its works fine on all the other computers in
the office. Can anyone help?

Thanks
David