Actually, yes I do own multiple copies of OS software. But I also have other uses for these computers, sometimes at the same time, hence I think this is reasonable. Here is another point to ponder on "single use" definition. If I have 2 computers running a wideview FS setup on their respective displays, I need two licences to use your aircraft. If instead, I have one computer running two displays in a multi-monitor configuration with the same views, I only need one licence. What extra value am I extracting in the former, functionally equivalent, case to warrant paying for an extra licence?Don't get me wrong, I want to pay for what I use. And that's my whole point!Gary

They have done it this way for very good reasons Gary. If you want the very best NG ever made then look no further, for the extra costs for your particular setup, it seems not too big a deal for what you are getting (fly it and see what I am talking about), heck most people cannot afford two systems for their hobby IMO.[h5]Best Wishes,Randy J. Smith[/h5][h6]Are You Ready For The Next Great one? PMDG's 737NG is almost here![/h6][h3]" A little learning is a dangerous thing"[/h3] [h5]AMD XP 2200 |MUNCHKIN 512 DDR RAM |ECS[/b ][i] K7S5A MB[/i] |GF3 64 MEG @ 215/545|WIN XP PRO |MITSUBISHI DIAMOND PLUS 91 19"[/h5]