Hi Frank,
There is a trick that you can use that might help when you don't know the values in a dropdown.
When designing your program, rather than enter the fieldname that you want to show in the dropdown (as you normally do), insert a space and then the fieldname enclosed in curly brackets (see screenshot1 in the 'dropdownnoscript' example in the attachment).
Now when you run the program, when you tab into the combobox you can just press the spacebar and a list of the values appears; you can, of course, if you know the value you want, start typing in the usual way.
One other thing you would want to do is to set the 'firstemptyitem' property to 'false' (see screenshot1) otherwise, even though the list of values appears once you've pressed the spacebar, the cursor doesn't start to scroll.
This being the case, I'd also create an empty item in the list of values for any data that might not have a droppeddown value.
If you do, nevertheless, want to do this by script, have a look at the 'dropdownwithscript' example in the attachment and shout out if anything's unclear.
Derek.