For what it's worth

If you have a Combo box in Access with a valid Rowsource, but it won't open (ie drop down), then check to see whether you have set an OnFocus event.

If you have, that will fire before anything else. In my case, I had erroneously set the OnFocus to SetFocus to a dummy field, which can be useful on a display-only field, but is crazy on a field where you are seeking an input!

# posted by John Geddes @ 9:05 am