Kudos on the new theme; I like it. I just thought I would bring some styling problems in Internet Explorer 8 to your attention.
House font does not work on menus in header (questions/tags/users, etc.). It looks like it is falling back to arial.
Ask Questionis wrapping around to the next line.
Actually, House font does not appear to be working at all in IE8.
Whiteboard ghost image does not appear in IE8.
Site seems to work fine in Firefox. OS is Windows 7 Enterprise. IE8 is 8.0.7600.16385.