Thanks for the response, and yes, I discovered that the keyboard and touch pad don't work when I was trying to deliver a presentation. I asked MS Surface Support about this, and the response I received was, " We confirmed it and it should work, also our support engineers will post an update or answered the queries online that while surface book is in presentation mode, the keyboard and touch pad should work." It is all very strange. Most people I've spoken to on message boards seem to think that it's not supposed to work but MS Surface Support seems to think that it should. I am at a loss..