Like this person,
1) When creating/editing a post, a lot of the features that were in previous versions i.e. ability to write an exerpt, send trackbacks, add custom field - all missing in my installation (basically there is nothing below the visual editor).
All these options disappeared from the bottom of my edit page. I can still edit the content.
This happened after I installed WP 3.1.1 today. It was visible until then. Now its gone.
Any advice would be appreciated.