Two column layout - naviagtion floated left, content floated right

WebmasterWorld.com CSS Forum:
http://www.webmasterworld.com/css/3073106.htm

I have a menu floated left, and a slideshow floated right.

They are supposed to be next to each other, and have been for a while now. When I looked through IE 6 the slideshow to the right is about 5px to the left, and has pushed the menu down under it, workes fine in other browsers.

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This is the slideshow.