Sam

Check this KB article KB Article Q136588

>I am using the standard list box to construct a mover class. The design is based off of the Wise Installation Interface, predefined entries on the left, double clicking copies the selected entries into the list on the right.
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>I have found some really strange problems with this. If I select all the items in the source list (about 200) then copy them all into the destination list, the source list goes blank. If I then move the scroll bar the items towards the top become visible, and the items at the very to are selected! I am not manipulating the selected[] property.
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>A variation, if I select 1 item from the bottom of the list (for example: Item 184) the list goes blank and at the top of the list an item (# 14) will be selected. Weird.