Yes, but they all seem to be displayed for errors such as not being able to log in or when posting entries. I’ve tried this with WP installed in its own directory and in the root. This is my 3rd or 4th install.
I see topics about the options.php and most of them are not answered.
Regarding .htaccess and mod_security, I don’t know what settings to use or even how to change this. My .htaccess file is totally empty, which is why I’m so confused.