Well it may have something to do with the internet that you use, internet explorer or firefox. I know that explorer just upgraded to a newer system so it might have something to do with that. I know the new internet explorer that I have has that compatability mode button that allows sties that have not adapted to the new explorer to be viewed in the former explorer version... maybe something to do what that?
I imagine on those earlier versions of IE that quite a few pages look different than the should too. Probably just a quick download of the newer versions that would fix it up.