I have several puters to test with and this site looks just fine on all of them using either firefox or IE (from 1024 to 1640) Yesterday I was at my wife office and tried to view the site and on the windows based computers I tried the sidebar posted on the top left and the main body then posted below it. Both computers where running IE and at better then 1024.
Both computers where also attached to a security system if that matters (insurance agency). I had a similar problem months ago with a different blog and it just seemed to work out.
I can not duplicate the problem at my office so I haven't a clue to what I can do to fix it.