[RESOLVED] Deselect a list item

I am having problems with this. I have a screen with 4 list boxes. When I click on a list item, it turns blue (background) and the logic is processed. However, after a few selections, I have many 'blue' items in the various boxes. I need to be able to clear (blue background) the selection as a part of the processing the selection. The "clear" method deletes everything from the list box. I don't want that. I have the gut feeling that it is something like setting the index to -1 or something like that.

Any help?

Setting the listindex of the box to -1 will clear the selection

I got that through some trial and error. Thanks for the quick response, though.