As read on the very bottom of IE6’s readme file:
Standards Compliance Issues
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Internet Explorer 6 Public Preview offers considerable improvements in standards compliance. In some cases, this may cause HTML content to look differently than in previous versions of Internet Explorer.
Many of the changes causing the largest compatibility problems are implemented only under a specific declaration in the HTML. If you see rendering problems, try removing any declaration in your code, and check the Developer Center for more information on these changes.
Which means: If you have problems with being standards-compliant, then switch back to non-compliance. Doh, stupid: Doctype declaration is the first thing checked in the W3C validator.
Well let’s hope they fix that. This readme file is scary.
Your words