Kubrick not stretching vertically?

Hi guys,

I’ve installed wordpress on a test domain and everything is fine but the theme isn’t stretching vertically to cover the posts, it just stops after a while.

Here’s the test page … http://bit.ly/9s5kJs …. I had customised the stylesheet but have now reverted to the original style.css to see if it helped … it didn’t … so don’t worry about things looking odd / out of place (header image).

All I’m concerned about is why the whitebackground doesn’t stretch until the bottom of the second blog post … surely it should??

The URL again is …. http://bit.ly/9s5kJs

Many thanks in advance for your help.