Problem description: the large font size after saving a post seems to be one size under the one being used under the wysiwyg mode. After edit the message again, the font size is the same as the post size. Test browser: FF Steps to reproduce: Put a text with the size 6. Save your message => the text size is smaller than the one displayed with the RTE Edit again your message => the text size is the same than the post size. Reselect the size 6, your text will be then bigger. Save it again => see step 2.