>>>>I was wondering If you have solved your problem yet because if so, I am interested in knowing how you solved it.
>>>
>>>Not yet but I am quite jealous of the fox guys in this. If you find out how please share. I will do the same. btw: in fox .additem "\Fred" makes just that line item Fred disabled...
>>
>>Well The best I can come up with is if you are not using the item data to set a flag in there and check to see if it is on or off in your onclick event. Otherwise if I have time I might roll my own. If I do I will put it up here for you.
>
>Being that I'm not using item data, it is available. Is there any way to visually indicate that the single line item is disabled?

I don't believe there is unless you use the checkbox style of listbox.