[jQuery] Problem with jQEm and scrolling divs on FF

[Kelvin Luck]

Hi,
I've just added the ability for jScrollPane to work with jQEm so if a 
user changes the text size in their browser the jScrollPane 
automatically updates itself.

In doing so I think I've come across an issue with jQEm and scrolling 
divs in Firefox (PC). An example is worth a thousand words so check this 
example page to illustrate the problem:

http://kelvinluck.com/assets/jquery/jQEmIssue/jQEmBug.html

Any ideas of what is happening?

Cheers,

Kelvin :)