Just when I though all was well, and I began to setup for production trial, I discovered that I cannot post updates to any forms with a HTML text attributes box. It immediately bombs with an error log entry "A potentially dangerous Request.Form value was detected from the client" I have checked out lots of suggestions regarding the disabling of html input checks in web.config, but they all seem to be there already. An example form is the welcome message on the Global General page.

Running on SBS2011 with SQLExpress 2008 R2, Web Platform 3.1. I may have missed something in the manual install, but I don't think so. Any help would be appreciated.