I maintain 6 different WordPress blogs all running either 2.9.1 or 2.9.2 on two different hosts. I’ve never had this problem until today. Now one is not allowing editing of files through the theme editor. I haven’t tried the plugin editor. It’s very time consuming doing editing through FTP, especially when styling. I reinstalled 2.9.2 on it to no avail. Please find the cure to my insanity.