I would like to know too, but If gruhs is happy to continue with 4.2 then we are at an impasse

So for now I am very much in the dark also. As I mentioned its possible there are administrator issues with Windows, but there is no way to be certain.

I do know of one other person this happened to (a SZ member - not from the UK), but his issue was very complex and required a few levels of fixes, essentially though it was due to 1) Non standard hard drive fitted. 2) Instrument forced with incorrect OS. (which is normally impossible to achieve).

I hate to leave things unfinished, but not much else we can do here for now.