Thanks. I did shortly after posting this question. About 30 minutes after this issue started, the keyboard stopped working too. Web support FAQ suggested it was the keyboard, but I tried the touch cover and type cover and neither worked. It also no
longer recognized the pen. I backed up my files, refreshed the Surface (save files, remove programs), it was still broke. I restored it to factory default (remove files and programs), still no workie. So I submitted it for repair, shipped it out Friday,
MS should receive it Monday. I did notice, after everything below the bottom edge of the display stopped working, the tablet ran much cooler. I think something burned out.
Still love the product though. I don't know why anyone would buy a tablet that can't do what a laptop or ultrabook can. I have been waiting for something like this for a long time. And the touch controls of IE in Metro blow away all other devices. I
hate using my wife's tablet now (bought her a Transformer Prime when Win 8 was announced to work on tablets thinking I could install it on that tablet when it was released. Sadly, not possible, but Ubuntu maybe!)