Geoff,

I deleted everything to do with Control:Mac from my MacBook, cancelled firewall, had admin permission and then tried to install again via Control:Web on a new user account. After that I was able to install on my own user account.

I did this because I think there is something residual to the previous installation which prevents installing the later version although this is supposition as I know very little about computers.

Tony
861v6+OE34+LPS+ID41, HD621, MC200, DSP7200.2, DSP5200HC, M6, DSW, Sky HD, BDP103.