HELP! Site looks different without www.

I'm working on the design for a site of mine

LowestRake(dot)com

And for some reason

www(dot)lowestrake(dot)com

looks different than

lowestrake(dot)com

???? I've never seen this before.. the image is getting smaller when www. aren't included. Any explanation? Help?

edit - The background graphic looks different too, without the www the graphic isn't fluid. I want the site to look like it does with the www

 

This only appears to be a problem in Firefox.. Is anyone else seeing this? I'm using a beta version of the browser so maybe that's it?

 

They are both exactly the same for me on Firefox 3.0.6

 

um.....yeah identical in Firefox 3.1b2 for mac.

 

Thanks.. it's still showing up weird for me though. It's shrinking the images slightly or something. I'm also using 3.06

 

Weird, maybe it's just my machine? If anyone else sees this please let me know. If it's just my comp I guess I really don't care.. I'm not marketing to myself after all.

 

It's one and the same thing for me. No change. Moreover, use of www never affects the design or look and feel of the website

 

I have the same problem. www(dot)dynapipe(dot)co(dot)uk looks different to dynapipe(dot)co(dot(uk), but only in ff4.

Does anyone have a solution to this problem?