It's how all this wonderful high tech stuff is produced. It has a usable life and then becomes obsolete. I'm no IT wizard but I'll bet it would be easier/cheaper to just buy the next generation of simulator than to try to get what you have running. I'm running Realflight 3.5 on a Windows 7 computer, and it works just OK. Would love to have something newer. RF7.5, $170 from Tower http://www3.towerhobbies.com/cgi-bin...&I=LXERVF&P=ML