Hi Ken,
thanks a lot, that does the trick. I was just stumbling over this setting as well, but I didn't know about the possibility to change it in the admin and tried editing the settings.py file, which didn't work.
A warning would be nice (don't know if you are contributor to Mezzanine?), maybe directly below the editor window, that at a certain richtext-filter-level, some (basic) features of the editor don't work. That is something someone doesn't expect at all with a fresh installation.
Another warning being nice as well would be something like "Flashplayer required", if you are on a browser with Flash not working and trying to upload a picture, I also searched my head of with that before knowing what was going on! :-)
Anyway: beside the start still being a bit rough: Mezzanine's looking really promising, looking forward to work more intensely with it!
Greetings
Holger