Drag/Drop in TreeView not scrolling well.

[Dave harris]

Is anyone aware of any issues with Drag and Drop in a
treeview having trouble scrolling past the top/bottom?
For this particular control, scrolling down works about
50% of the time and is pretty sensitve (the mouse has to
be just so). Scrolling up doesn't work at all.

I have tried docking it on a panel and giving the panel a
nice thick dock padding to help separate it from other
controls on the dialog and it doesn't seem to help.

Any help appreciated,

Thanks.