hrmmm thats odd because there is a gap in my background image for me with both FF and IE. A bigger gap in IE.
You are on the right screen right? Where its asking you if your a returning customer or where you can sign in? This is after you have added an item to your cart and hit the "checkout" button.
I'm not talking about the diamond plate part, its the blue left border, middle white, and right blue border. Instead its absent and the diamond plate is shown through.
www.systemskins.com/images/misc/missingbg.gif