WordPress 2.0 - Trackback spam and Bug Protection

N och 3 small additions: According to the WP 2.0 update no longer worked at the trackbacks. After everything I've tried, I was at Kai find: The SQL command
update wp_posts set to_ping=''
sufficient to remedy. With "two single quotes are meant. I had to type in my MySQL version, however,
update `wp1_posts` set to_ping=''
For spam protection: My Captchar-thing, Bad Behavior, etc. I now have time off and try all the included Akismet out. Let's see ...
And even a tiny bit to the right of the Admin-mail text box folded menus: They seem to always keep the last auf-/zu-Einstellung. And that's good. Because the categories and the shape I want to tracks are always visible.