masquerade

Yes, looks like mysql was down a few minutes ago. Nobody can truely guarantee infinite uptime, but I must say the forums have been down a lot lately, this is the second day in a row I’ve seen the database server go down.

The file is supposed to be wp-config.php, not wp_config.php.

Which version of WordPress are you running? I have a feeling it is newer than the latest stable, in which case a lot is broken, including adding users. If its stable, then something else may be at work, not entirely sure what.

Odds are, WordPress is not at fault. What other scripts do you have running? are you on a shared host that does not have open_basedir or safe_mode restrictions on? Have you set unnecessary file permissions like 777 on essential files?

You’ll have to remove all the P tags, by running a plugin that disables the wpautop filter.
http://dev.wp-plugins.org/file/disable-wpautop/trunk/disable-wpautop.php

What you need to be backing up is the database, its where all the information WordPress uses goes. Skippy has a nice database backup plugin, available at http://www.skippy.net/blog/category/wordpress/plugins/wp-db-backup/

relative paths are “/blog/uri/to/post” as opposed to “http://blog.com/blog/uri/to/post”

You probably accidentally enabled the plugin twice, so the code is being loaded twice. WP-Medic can help you out with disabling the plugin without accessing wp-admin