You can try this. As soon as you tab out of the field right before the radio button group, use your space bar on the keyboard to select the first radio button in the group and arror buttons to navigate to other radio button in that group.
Let me know if you can select the radio button this way.
The only way that I can get into the radio buttons is by clicking into it with the mouse. once in the radio button group I can arrow back and forth between the two and then I can tab to the next radio button group but it skips the text boxes that should come before it.
Bill, I also have the problem of the radio button group being skipped altogether when tabbing through the form. I tried creating a new form from scratch, and radio buttons could be tabbed into, but Shift+Tab skipped on the way back. It seems there is something wrong with radio buttons.
I even tried using script on the exit event of the text field before the radio button group, but couldn't get that to work either. I'm now considering using checkboxes and scripting the behaviour to mimic radio buttons. What a hassle!
I am using Designer 7.0, so maybe I have to upgrade too.
C'mon Adobe, I've searched all these forums plus other websites like PlanetPDF, and no-one has an answer to the radio button tabbing issue. Is it a bug??