Quix: it sounds suspiciously like you managed to get a lousy download. Before getting frustrated, I would try a second copy. Hmmm... Also now seeing you are writing at 3AM - I wonder if the server the install program is trying to access for additional files is down for maintenance?
Will try and do it from firefox here shortly.
Nothing’s working. Tried repeated downloads, full downloads etc. Still same error msgs.
. . . whether from within firefox; IE, from the downloaded files, clicking “run” first; clicking “save” first, whatever.
May try and turn off my anti-virus at some point and try it again but that shouldn’t be a problem.
Thanks for your help.