hi ,i had installed the software quiet sometime back ,around 4 to 5 days back. but had not instaled the service update....as i did not read the manual properly......yesterday i completed everything needed.......the plane works fine, this is my first aircraft with a fmc ,so i do not not how to use it, i have been through the tutorial & found some problem..........in the ident page i find below Nav Data Not Valid is written & next to the nav data on right side there is active & below that again there is not valid, when i right something in the scratchpad for the ref airport ......i get not in the database...............please help me .....what am i suppose to do...thank u in advance

Hello, It sounds like you do not have the Airac (Navdata) installed Don. Please go here and register to be able to download the needed airac cycle. http://www.navdata.at/ If you have FS9 the files will need to be installes here: C:Program FilesMicrosoft GamesFlight Simulator 9FMCWPNAVDATA Please see the screenshot. If you do not have the FMCWP folder you will need to create it in the MAIN FS9 folder and check the files are within the NAVDATA folder.. If you need more help feel free to ask.. http://forums.avsim.net/user_files/51771.jpg[h4]Best Wishes,Randy J. Smithhttp://www.precisionmanuals.com/images/betaimg.jpg