Anyone know the solution? I thnink I have the same problem!
I was able to change all the pages (by changing page-look from standard template to content/sidebar) accept the newspage where the posts are coming in. There was no way to get this page right.
So now I turned for the time being to twenty twelve.
I don’t realy understand the warning/error but I think it’s because not everything is completly compatible with HTML5?
I use the pinboard-theme http://www.jannysart.nl
