TinyMCE isn't working properly on my website either. I think it must be the change to 1.5. I have tried to uninstall it in the admin area, but that wouldn't work. I had to manually remove it in the file manager my webhost offers. Even then, it doesn't completely remove the plugin; only deactivate it. The plugin will still show in the plugin list, even though the files are gone. I reuploaded the plugin for now, and just clicked deactivate on it. Also, there is a block of code that appears below the footer when I try and make a new topic in the Forum of my site. I haven't tried submitting in other areas, but I will soon. For now, here's a pic of the block of code.