Blank space at bottom of pages?

I'm seeing a big chunk of blank space at the bottom of each page on my website (www.RCAdvisor.com). I assumed that it was normal, but I now see that your website does not have this. Any ideas what's causing this? I'm pretty much running your theme "stock".

Carlos

- I figured out what the problem was. It's the Administrative CSS menu bar the top of the screen. I have no idea why it does this.

Hi Carlos, thank you for using Artists CO1.

I visited the site, but I'm unsure which blank space are you referring to. Do I need to log-in to see this? Which browser are you using?