I just upgraded two of my blogs, this one and Pajama Entrepreneur, to WordPress 2.2 which was released last week. The new version is buggy and I regret having upgraded so soon. For whatever reason, maybe I have lots of widgets on the other blog, several things are broken: the quicktags don’t work, I get errors using Marsedit, the sidebar widgets which are integrated in WordPress 2.2 can’t be changed, etc. From now on I’m waiting at least a month before upgrading unless the upgrade is necessary for security reasons.
UPDATE: I solved the visual editor problems and Marsedit XML parsing failure by deactivating one of the older plugins called Secure and Accessible PHP Contact Form (v.2.0WP B20070414).