Ok, the program is downloaded and sitting on the desktop, click to run, get the prompt to Run or not run, click run and almost right away the monitor switches off and the computer is rebooting.
Other circumstances: had NERO Trial Mediasuite installed on another amost identical computer, no worries, and I remember that right after the Run/no run prompt, NERO popped up an extraction window so presumably that is right where the purchased version is crashing on the other computer. The drives are traditionally labeled with plenty of room so there should be a C/temp extract area available and just to check that it wasn’t a bad download I copied over the trial version and it crashed the computer in exactly the same moment of install, and I tried the purchased version on yet another computer and it sailed right through the extraction.
So, any ideas what the problem might be?