Formatting not working in pages and posts

Hi

I seem to have lost the formatting control in my posts and pages.

If you look at the following two pages you’ll see that headers, and embedded tags are not working anymore

http://ianapplegate.co.uk/building/contact-us/
http://ianapplegate.co.uk/building/2010/03/another-piece-of-work/

There should be headers in there, and the map was working on the contacts page. It seems all of the formatting in the posts and pages is just not working.

Any ideas?

Thanks,

Ian