Mouse capture release issue using ListBoxDragDropTarget

Question

Mouse capture release issue using SilverlightTookit control ListBoxDragDropTarget

I have implemented drag and drop functionality using ListBoxDragDropTarget control of SilverlightToolkit in Silverlight 5.

Drag and drop functionality is working fine but some time when I clicked any item from ListBox, the item is sticks with mouse and after selecting I moving mouse around it, Item is dragging around with mouse pointer though I have release MouseLeftButton.

Can anyone help me about this issue, this issue is generating randomly, So I am unable to take the issue.

Thanks