Dear all Just to let you know that with the able and willing assistance of John-Mark Bell we have solved the problem.
I had an out-of-date version of a module installed, called CryptRandom. Originally (when Netsurf reported it needed CryptRand) I'd Googled for "CryptRandom" and the search results delivered "1 June 2012...Current version is 0.03" I had version 0.12 installed. Naturally I had (mistakenly as it turned out) assumed that version 0.12 was later than version 0.03, whereas in fact the latest version is in fact 0.13. I daresay you probably all have got version 0.13 anyway but just to make you aware if you haven't! Thanks again to John-Mark and the team best, -- Chris