Form field Properties dialog box -- weird behavior

I need to edit properties for some of the fields that already exist in a form (I'm changing the field name, setting the field to Read Only, and adding a custom calculation script.)

To edit these properties, I select each field in the [b]Fields[/b] pane, without closing the [b]Properties[/b] dialog in between. I click inside the [b]Name[/b] box, edit the name, and either (1) tab to the [b]Read Only[/b] check box or (2) just select the [b]Read Only[/b] check box using the mouse.

The problem is that either way I do it -- by tabbing through the dialog box or by clicking the check box directly -- the [b]Properties[/b] dialog jumps to the next form field in the [b]Fields[/b] pane.

So any subsequent edits I make in the [b]Properties[/b] dialog get made to a different form field than the one I just renamed!

Luckily I figured out what was happening before I'd done too many of these (I have approximately 50 fields to edit), but it's REALLY disconcerting.

I've noticed this behavior periodically with the [b]Properties[/b] dialog before, but I guess I haven't done this kind of concentrated editing before...today it's obvious enough that I finally logged in to ask about it.

Has anybody noticed this problem? Is it a known bug? Is there any way to get around it?

Thanks!
Caroline