Why does my Wordpress Powered Blog Load Funky?

I have a blog with the Mandigo theme on it. It loads weird.

The 2 sidebars load on one side then seperate to each side of the page. Why is this?

Is it a problem with the theme or is my header too large maybe?

Here is my site BMW Lease Deals

Looks ok to me in Firefox. What browser are you using?

I check your site, problem in it’s header not a problem of a theme.

I am using firefox also…could it be that the header image is too large? Scratch that its less than 100kb…maybe its the ad unit at the end of the header?

Its opening fine for me…looking nice…
I guess the problem may be because of the resolution.
what resolution size you have thomasr?