>One solution I've thought of, but don't really like is in the NodeClick moving them back to the node that was selected previously. I can't seem to get that to work without them seeing the highlight move to the new node and then back again. (Lockscreen doesn't work here.)

Hi Barbara,

I didn't follow this thread so I would comment on Lockscreen only. It works with VFP controls only. For ActiveX controls you can use LockWindowUpdate Win API. Something like

DECLARE INTEGER LockWindowUpdate IN Win32API;
 INTEGER hWnd
* Assuming that it's called from inside TreeView
= LockWindowUpdate(This.hWnd)
* DO Whatever
= LockWindowUpdate(0)