Error on Chaning a Record????????

[Randy]

I have a simple address table and form. On the form I have a combo box
to find the business name and pull up the record. That works fine and
I can move from record to record. However when I pull up an business
by the combo box and make a change in the data. It takes the data but
when I click on the combo box to go to another record I get the
following error message.

"Run Time Error 2001 You canceled previous operation"

When I click ok and click on the combo box to go the the record I
selected it will take the data and if I try to select another record I
get the same message.

Appreciate any help.