Thank you for your quick reply, I think I'll hold off for now then, I've had issues like this before with games of XB store it drives me mad, it's bad enough when you spend hard earned money on a game that's faulty, but when you've invested hours/days of your life into it as well, which you can never buy back or be refunded, It really hacks me off! shame as what I can remember the pc version was excellent game, will keep my eye on any patch releases for now and hopefully join the KSP one day
Cheers