I have a Mac OS X 10.3.9 and last year, Sept. '09 , I was able to renew my subscription with NAV for the Mac Version 10. This year the renewal is Version 11, however the requirements for Version 11 do not include my OS. Upgrading my OS might not happen in time for the subscription deadline. If this happens can I still use NAV Version 11 with my OS and will 11 function properly? Or is there any other NAV Version for the Mac that I can use? I appreciate your help, Thank You! Lillo, 9/6/10