Cannot save selections in a drop down box

I created a snazzy form in Adobe Designer 7.0.  This form had drop down boxes with 3 or 4 selections in them.

When I open AA 7 Pro and fill the form out, it won't save the drop down box entries.

For example:

One field is just a text entry, so I'll enter "20,000".  The next field has 3 selections "Diesel, Gasoline, Kerosene"; I will select Diesel.

I will save, close and reopen that file.

The "20,000" will be there, but it won't save the "Diesel".

So what gives?  Is it me?