[JAWSLite] finding a vanishing checkbox

Hi all --
I have been using jaws for some time now but never figured out how to do the 
following.
Some of the dialogs, in OE for example, have a sequence of items with 
checkboxes that I arrow through and press the spacebar to check.
The problem is that in some of the cases, the spacebar does not toggle the 
checkbox. Furthermore, when I route jaws to pc and arrow around to manually 
check or uncheck the box, I find that sometimes the box is there and other 
times not.
There seems to be no rhyme or reason for the checkbox to vanish or not --  
but since jaws is smart enough  to speak the state of the box, I would think 
it should be able to find it with the jaws cursor.

It seems to me some time ago that someone suggested reclassing something to 
make vanishing things appear, but I don't remember what the procedure was.

Could someone more familiar with jaws scripting possibly share how to locate 
the box in question?

The current dialog in question is the columns dialog on the view menu in 
Outlook Express.

TIA and happy sharking...
--le

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