I am having a problem with the WYSIWYG on your site using FireFox, but IE is not giving me any problems. The WYSIWYG is working fine once you go to the normal reply page as well, so that's even weirder. And I still don't see how the CMPS would affect anything with the WYSIWYG as you do not touch any files associated with that when installing the CMPS, nor have any of the thousands of users that use this script ever reported a problem like this until now. The thread on
vb.com that you posted has nothing to do with the issue you're having either... They're talking about problems with the WYSIWYG editor not formatting text properly, while your problem is that you cannot even type in the WYSIWYG editor. The only thing I can suggest is to revert your 'SHOWTHREAD' and 'showthread_quickreply' templates if you have modified them, and to try uploading all of the files in your /forum/clientscript folder in binary mode to see if that helps. If neither of those helps at all then I don't think I'm going to be able to find the problem without having access to things.