Between the ELOG versions 2.7.0 and 2.7.1 the internal HTML editor FCKedit has been upgraded from version 2.4.3 to 2.5beta. The new version has a few more options and supports more browsers. People however reported some errors popping up like Unknown toolbar item "ELOGSubmit". This happens because some browsers cache the JavaScript from the old version of the editor in their cache. To fix this problem, simple clear the browser's cache. In Firefox, do a Tools -> Options -> Advanced -> Cache -> Clear now. Other browsers have similar ways to clear the cache.