Well, I'm now posting this from a PC (who'd have known that having the PC's clock and date set to 2006 could create so many issues???)
Websites were loading in html, and I was constantly getting trusted sites blocked with no option to bypass the block... and it was all because the clock was set to 2006.
Anyway, things not looking quite so bad now. I still reckon I've lost my game, but at least I can keep posting here (for now)