>I have a form using a PageFrame. Each page is sectioned off using a splitter bar. On pages where I am using base class VFP objects like a listbox and grids it works great. The prblem comes in when I use I use the same code with a TreeView on the left and grids on the right.
>When I try to move the vertical splitter I get strange results where the objects begin to move properly and suddenly snap backwards about an inch. Anybody have any ideas how to solve this one?

basically the x coordinate you get in the mousemove is influenced by the treeview's x coordinate try something like
MCOL(thisform.name,3) to get the real coordinates

Arnon