Hi Pete, I assume that you meant "True Scale"? Did you get any error message when you played the DVD?
Which patch did you load? In general, you should install the addon disk first, then the patch. If this sequence is not followed, try uninstalling/reinstalling AFPD (uninstallation procedure can be found at the bottom of this page
http://www.aerofly.com/www/downloads.html ), followed by addon 3.
As for your new graphics card, pls go to the nvidia site and download/install the latest driver.