[peytontodd]

Thanks for the info. But do you know how I would access windows 7 compatibility? I assume this must be part of Windows 8.1 somewhere (which I bought to try to keep up with developments, but which so far I hate!).

Update: Everything I've been able to learn about compatibility mode in Windows 8 starts by clicking on the program's icon. But there is none in this case since Protools does not install!