I have purchased a new computer and would like to move my copy of RC ver 4.3 to this machine. Can someone give me a heads up as to the best way to do this. I still have my original disc but am I not sure if there was some sort of upgrade after I received it. Also I recall JD emailed me some sort of licence but that was a long time ago. I might be able to find it on my old machine if I new what and where to look.I have read that there can be issues with unregistered system files so I would like to avoid that if possible.Many thanks in advance,PeterNew system is i7 3.4 Ghz Intel, Windows 64 bit, 8 gig ram, Nvidia GTX 580 video card.