[WSG] WordPress - Dropped Sidebar In IE

[Artemis]

Good morning :) I'm working on my 4th WordPress template, but cannot figure out why the sidebar drops down in IE view. It looks fine in Firefox and Opera though. Can someone take a peek at the stylesheet and tell this *newbie* what I'm missing? http://subliminalconfusion.net/artemis http://subliminalconfusion.net/artemis/wp-content/themes/KDLittle/style.css Many thanks in advance! Artemis