I'm running 4 blogs with WordPress on the same site (host: 1&1) with different versions: 2.9.1, 2.7.1., 2.7. and 2.6.
Yet they all have in common that I am no longer able to publish posts or save drafts. Moreover, the permalink bar below the post title is gone. When I press the publish button I automatically will be redirected to the Edit Posts page (edit.php) but the new article will not be there or in the draft section.
I'm encountering this problem for a couple of weeks now without having updated any wordpress version in the first case. Now, that I made an update at my one blog (2.8. to 2.9.1.) the whole thing won't change though I hoped it would resolve the problem.
I also deactivated all plugins and changed the theme to the default but it didn't work either.
I also noticed that I am no longer able to make changes to the general preferences section. Beyond that I am not able to upload any image no matter what size it has. The process will stop short after I've hit the upload button. So maybe this is a hint, too.
Nevertheless, I am absolutely clueless where this problem might originate from because it appeared without having made changes to any of my 4 blogs.
Thanx in advance for your help!