I'm wondering if there's some em counting error in IE? This includes IE7 as well.
I tried copying the effect Eric Meyer has on his Complex spiral demo. I couldn't do it exactly the same because I'm floating a box right on a liquid page. But, I got it working. I have a right-floating sidebar with a menu. The menu has a background (the "normal" image) and each anchor has its own copy of the "overexposed" image to show on hover (I couldn't use just one fixed image like Eric did), and each anchor is 2em high. So, all the coordinates for each "overexposed" image is off by 2 em. Works in everything that I can test except in IE, where it also works, but only on the first menu item. The next menu item is off by just a hair. The next one is off by a bit more, and as you go towards the bottom, it gets worse.
It's as if IE is adding 2em and 2em and getting 4.1em or something.
Yes, I've got permission for the images (they're from stock exchange .hu but I needed permission/to notify the owners for when this gets (freely) distributed).
No, this isn't a finished page, though the menu was pretty much done. But any other critisism with code is welcome.