When attempting to post anything more than a single line I am getting:
An appropriate representation of the requested resource /wp-admin/post.php could not be found on this server.
I was running 1.01 and getting this. I upgraded to 1.2 thinking the new files would overwrite whatever was bad, but I am still getting it.
I can post a short post as long as it does not include any links or any tags (blockquote and other WordPress tags or HTML tags). As soon as I deviate from plain text in any way, I get the error. Things were working fine yesterday.