fullscreen Mode Hangover

Working in IE, I am opening a window in fullscreen and it works great:

window.open('walk08/show.html',page,'fullscreen=yes,top=0,left=0,width=690,height=535');

But from that window, I open a window that I don't want to be in fullscreen mode:

window.open('zoom.html',picNumText,'fullscreen=no');

But I get fullscreen mode.

What I'm doing is allowing the user to see a high resolution jpeg, and you have to scroll to see it all. Which is what I want.

I get the scroll bars, but I don't get the X in the red box in the upper right corner and therefore the user can't close the frame.

Thanks, Peter