WordPress Editor Screwed (Blank screen)

Hello,

From an hour to the next one, the editor of my WordPress admin got screwed. I can’t either access the Visal tab, or the HTML tab. Here’s how it looks like:

http://pinwii.files.wordpress.com/2011/08/captura-de-pantalla-2011-08-05-a-las-18-46-51.png

The last “weird” thing I remember doing was running this command through the WP-DBManager plugin, which has an option to run MySQL queries:

DELETE FROM wp_posts WHERE post_type = "revision";

I ran this, because it’s recommended by my server Dreamhost, in they’re WordPress tuning page:

http://wiki.dreamhost.com/Fine_Tuning_Your_WordPress_Install

I am not sure that this was what made it screw up, since I’m pretty sure I used it after that.

Here’s my entire list of plugins:

Akismet
All in One SEO Pack
DB Cache Reloaded Fix
Disqus Comment System
Flexi Pages Widget
Google XML Sitemaps
Jetpack by WordPress.com
NextGEN Gallery
Revision Control
Tweet, Like, Google +1 and Share
WP-DBManager
WP-Polls
WP Super Cache
WP to Twitter
WP Widget Cache

I’d REALLY appreciate your help since all my income depends on this blog 🙁