I just made the mistake of upgrading and wrote a new article.

Guess what?

In preview and after I published it, it is a black page with no text or photo?

Where is my article?

what did you upgrade?
what version are you on?
What is your url?
have you applied all bugfix's?

I think it was Wordpress 2.7 that I had, and now is 3.1.3.

I made the article private but can open it to show you, and where and how to I apply bug fixes?

Thank you very much for any help.

What version of Atahualpa?

Also, do not double post.

Sorry about the double post.

What is Atahualpa?

Atahualpa is the theme that this forum supports. Since you don't use it, I suggest you contact the author of the theme you use or post at wordpress.org.