I am using VS2005 (VB) with XP on a dual monitor system.

I have the main window on the left screen & I place the other windows like
properties, solution explorer etc on the Right Hand screen.

These windows have a habbit of moving around

i.e.

If I close the IDE and then re-open it I get the solution explorer & toolbox
windows present, but no properties (because I have no project loaded)

I I then load my project the properties window appears, but NOT in the
position i last placed it.

and
If I am editing a project and then do a rebuild solution, whilst the
solution is rebuilding the toolbox window moves to the centre of the other
screen, later on in the rebuild the toolbox also moves to the other screen.
This does not always happen but i can get it to happen quite regulary when
rebuilding the solution (15+ Projects)

and
try running it the properties  & toolbox windows will move from where i put
them to the middle of the current screen.