No, I see the problem.
That absolutely-positioned stripes div is screwing with things, I think.
IE is indeed making the footer and top border 100% width... of the body. The body is not as wide as the stripes div.
You can test by temporarily removing the min-width or the width: 100% on that... the scrollbar on IE should go away (if it doesn't then "stripes" isn't the one causing it... but I didn't see any other likely candidates).
Really, I see it as a kind of unsteady kludge to use a div like that (I've seen it used fine, but its kludgy-ness was ok because they were dealing with CSS Opacity which does have special requirements)... instead, use that #wrap element you've got which is currently doing nothing. It's containing everyone else, so its background image will naturally be behind everything else... it can have the min-width: 1037 or whatever, and you won't need to also state a width: 100% with it because it'll be a regular block in the flow (so it'll grow without any help by default). An abso-po'd element does need that explicit "width: 100%;" so this solution may fix your problem.
I notice the menu's css is repeated several times. I approve of the mention of :focus with the :hover in the last section, but it's missing from the other versions. Near the beginning, all focussed anchors have the useful "outline" removed, yet there is no separate :focus style anywhere... instead, I suggest you remove the outline only from the menu (where you have explicit focus styles to do the job for you) and leave them everywhere else. Esp tabbing through the facebook/twitter/feed buttons, I must rely on my browser showing the url at the bottom to know where I am... no no no. Give me outline, or give me some other style to tell me where I've tabbed to.
I'm not a fan of the negative text-indent, and you already have the separate classes on each link anyway, so I'd go ahead and use Gilder-Levin so that your images just cover up text (which also gets styles for colour etc)... this prevents users with CSS on but no images (either yours don't load or they've turned them off for better surfing on slow connections or whatever) from getting a mystery-meat-menu.
So anyway I think removing the stripes div entirely and making #wrap do the equivalent job will make IE happier.