[Ideal Web Tech]

Thats actually a problem in vbulletin 4.0's style system for centered fixed with styles and IE version 7 (and under) was what we confirmed it in. We made corrections to our style itself to fix the problems on our sites.

We confirmed this by testing on a fresh vb 4.0 style and changing the values to give it a fixed width and then resizing in IE. With just those changes the problem is clearly present in the style itself. The problem was that elements were losing context to their placement due to ie's poor handling of elements sizes, and the fact that its not recalculating things it should (which is why its only present on resizing, and only in fixed width styles where the center position changes, if you notice all the elements with the problem should be the ones defined as static (if I remember correctly). The solution was to move the width attribute off the body tag onto the main divs that control the content (header, footer, and maincontent).

Hope that helps you some.