[Inkscape-user] Changing from portrait to landscape and back

I'm using 0.44 and whenever I change from landscape to portrait, my image on the page shrinks in size relative to the page. I have to keep scaling the image up. When I change from portrait to landscape, the image enlarges and I have to scale it down to fit within the page. Is there a switch somewhere that controls this behavior?

Thanks, Wayne Mandriva 2006