Preventing xemacs from playing around with it's window in Windows

Dear Xemacs users,

When I start-up xemacs and maximise the window under Windows XP, xemacs 
resizes and moves the window around when I start using it. This is 
raelly annoying as xemacs usually places the window slightly outside the 
screen and I have to keep on moving it back to center. And it wont 
staymaximised.

Is there a way of preventing this from happening ?

I am using xemacs 21.5.20 and Windows XP.

Thanks,
Tolga