0000377: Collections Re-Arrange themselves due to unintended drag/drop
Drag/Drop is happening when user just wants to select a collection in the tree with the mouse. This causes the previously-selected collection (often the InBox) to be placed inside the collection that was just clicked.
It only happens on some systems.
Steps To Reproduce
Solution involves the addition of a check for the ALT key. If ALT is held, a drag/drop is allowed. Otherwise, the drag/drop is ignored. Tooltip is added to indicate that an ALT is needed for a dragdrop. The requirement for the ALT is a toggle held in:
Default is TRUE (1).
User can override in Tools | Options | Advanced.