scrollbars not showing in IE8

using to open a popup, the “scrollbars=1” thing is not working in IE8 for some reason (the window opens, its just that the scroll bar that isn’t showing).

works fine in firefox and chrome
here is what I tried:, null, "height=200, width=400,  scrollbars=yes, scrollbars=1, toolbar=no, resizable=1, menubar=no, location=no");, null, "height=200, width=400");, "blank", "scrollbars=1,toolbar=no,menubar=no,width=200,height=200, ");, "FarmQuery", 'resizable=1,scrollbars=1');, '','Height=200px,Width=200px,menubar=no,toolbar=no,scrollbars:yes;')

“source” is “” by the way

Tests indicate that to set scrollbars, I.E. accepts yes or a non-zero digit.

<input type="button" onClick='"", "blank", "scrollbars=yes,toolbar=no,menubar=no,width=200,height=200" )', value="Open PopUps">