I'm seeing the same issue with IE8 and setExpression. From MSDN:
http://msdn.microsoft.com/en-us/library/ms537634.aspx
"As of Windows Internet Explorer 8, dynamic properties have been
deprecated and are only supported for Web pages displayed in IE5 mode
or IE7 mode."
it looks like they suggest replacing code such as
s.setExpression('height','Math.max(document.body.scrollHeight,
document.body.offsetHeight) - (jQuery.boxModel?
0:'+opts.quirksmodeOffsetHack+') + "px"')
with
s.height = Math.max(document.body.scrollHeight,
document.body.offsetHeight) - (jQuery.boxModel?
0:'+opts.quirksmodeOffsetHack+') + "px'
Thoughts?
