My day is ruined as I entered the last phase in designing my Wordpress theme, testing for IE. I have the theme already set up at demo.musamem.net/themepreview/ and it's fully (nearly) valid XHTML 1.0 strict code. Doctype is in place, proper encoding is used and the code is valid. Despite that, IE still forces compatibility mode (tried that on both IE8 and IE7) and of course, that breaks the design.

Any ideas how to get it into standards mode?