WinSCP minimizes permenantly to a tiny window

Hi, I run a windows multiple desktop manager under XP (SP2) called MSVDM.
If I start WINSCP in one screen and switch to another and then back again then WINSCP
dissapears into a tiny window in the top left of the screen and nothing can be done to restore it to its original state.
MSVDM is available free from MS so it should be really easy to reproduce this.
I have not seen this issue with any of the other tools and programs that I use.
TIA
Bob

It only happens if the window is maximized.
Bob

This is known problem that I do not know solution for :-(