In edit mode, can't select specific options in combo box

Question

I need to edit options in a combox box.  When I click on the option I want to edit, it's actually reflected in the combo box, but the option I selected doesn't stay highlighted for editing. The highlight jumps to a different option. This is consistent, but not all options jump.  I can't edit many of the options. Using Acrobat 9 Pro.
Any suggestions? 

Answer 1

try67 says..."It's not necessary to use Acrobat 5 to edit form fields. Acrobat 9 can do it just fine."
For the most part, A5 and A9 field editing process is the same.  Editing the combox box properties is EXACTLY the same. Open the combo box field properties, select the options tab. Click on the option you want to change. The text shows up in the upper window. Edit the text. Save the edited option. It goes to the bottom, Then run it up to where it goes in the list and delete the prior option.   In Acrobat 9 (on two machines in our office) the item you click on does not stay selected. The job at hand has a list of 33 options, some stay selected, some do not and are impossible to select...even to delete.
In Acrobat 5, this same process works perfectly.
I'm quite sure that anyone serious (aka trying to make money) about Acrobat production keeps a copy of A5 on hand.  Try setting tab order in V9 on a 900 field form that requires a mix of column and row ordering. Then go to the window at the left and pick a field and try to run it up to where it goes. The window doesn't even scroll.  You have to set your field down, scroll the window and pick it up and go another jag. And then, scroll back down and try to find your place to pick up the next field. In A5, you simply click the fields on the form in the order you want them.  10 minutes vs. 2 hours.
This is not "just fine".