Anytime I try to post, Firefox asks me to save or open post.php.
Same thing happens when users try to comment.
The host is now running PHP 4.4.1
I upgraded to WordPress 2.0.3 and comments work now.
Posting keeps asking you to save the file "post.php" (after a long while) and although it seems nothing has happened, it has done the job.
It seems it's being redirected to "post.php" instead of "post-new.php" when clicking on "Save".
Whose fault is this: WordPress, PHP?