No WYSIWYG, no “Quick Edit” after moving from MAMP development environment to live server. Same version of WP (3.1.1). Tried all the fixes above (Plugins on/off, fresh wp-admin and includes folders, checked permissions on tiny_mce files). Won’t run any 3rd party editor plugin either. Did anyone ever solve this? It has to be something in the server vs. WP but…seems like a serious WP instability to me. Will be a deal-killer on future WP projects as I can’t hand over a site to a client w/o WYSIWYG. ??