Firefox 18 issues with sidebar example

[swayed]

Hi, just wondered if there were any known issues with the latest examples, as the sidebar example doesnt seem to work, it displays but doesnt show the side bar at all, it works on ie9, chrome but not on firefox.

This is what i get:

this.pages[1].node is null

withinCurrentPage = this.pages[1] && this.pages[1].node.contains(el); line 636
 any help much appreciated.