Page is "jumping" in FF

Hi!

Try to go here: http://www.xflightx.port10.com/NEW/index.html and then hover over multimedia --> click on wallpapers.

For some reason the whole layout is jumping a little to the left. And then, when you click home it jumps to the right. Did you see it??

HOW come??? I works fine in IE6...

e.g.

Home is a short page. Wallpapers is long enough to cause a vertical scrollbar.
The scrollbar takes up approximately 16px, so the canvas area suddenly becomes 16px more narrow.
To stay center within the new canvas width, FF shifts the layout 8px to the left.

Ahh! Thanks Bill, that actually makes scense! :)
So I guess that's just normal.

adding

html
{
height:100%;
margin-bottom:1px;
}

will give you a scrollbar on all pages

Thanks Nancy, now it works a lot better!