Jquery expander breaks tiling background

http://mrcpsychmentor.com/testsite2/

if you click the “read more” & scroll down, you’ll see that one of the background images on the body element (images/sideGradients.png) doesn’t stretch all the way to the bottom

its got me why its doing this. especially as it was working before (see http://mrcpsychmentor.com/testsite/)

any ideas v welcome

You asked this question already. (I don’t have any experience w/jQuery Expander, so I’m not attempting an answer.) Thread closed.