Hmmm, aparently the google toolbar spell checker doesn’t play nice with the WordPress WYSIWYG editor. It ended up leaving junks divs in the post that don’t display, but do get included in the RSS. Spellbound doesn’t seem to work with 1.5.x either. Any one have other options?

UPDATE: I’ve found out by simply editing the max version numbers Spellbound will work with 1.5.x.  You can find the files already edited here.