[SOLVED] My author name disappeared

Hi,

I have a weird issue today. I have a few administrator users on my blog.

I logged in using my regular user and posted a new post. Then, I saw that the author of the post was the second administrator user I have in my blog.

On the post page, in the Post Author section, there's a combo with authors' names. The user with which I logged in does not appear there at all.

How can this be?

Please help,

Thanks,

John
p.s. using 3.4.2 with wp 2.9.2