SuzyUK - 10:34 pm on Jun 2, 2011 (gmt 0)
I've just followed your second link, and no matter the resolution i try, the page remains within viewport for me, and does not force a scroll bar. in any browser.
it shouldn't? (I saw the scroll bar when I expected to at anything less than a 1250 width res) - don't be tempted to maximise the popup window!
if you maximise, you will of course be seeing it at your resolution not the one you asked to see it at!
how'd it go with the FF3.6/4 comparison?