Hello spannersatcx,
I forgot to mention I did in fact have the Core as 1.05 having updated to that version shortly after it came out.
However, I did another re-download, in which it uninstalls previous versions (which would have been 1.05 anyway) but I followed through with the uninstall, and the re-install.
Tried the "update" again........... boom......... it opened, one would think from memory, with the progress bar stuck at 5%.
Still stuck with a hung-start!
I will now try an uninstall, away from the download site and then come in clean and see what happens next!
Thanks anyway.
Cheers
TG