The start button didn't appear. If not you should do. I tried again after receiving your reply and it worked this time up to a point. After a couple of seconds the systems error yellow panel pops up. However it's blank and the prog freezes.
Pause starts flashing on title bar.
2.9.16 has a fix for this problem. It cleared him ok. However, when I entered as new site as you suggested nothing happened. As well the control buttons panel didn't fully download. The start button didn't appear.