can you help when programing fmc in the RTE page next to LSK3R i get the message "DATA LINK NO COMM" is this correct,allso when importing flight plans from FS Navigator i get LNAV DATA but no VNAN DAT is this also correct.I have also tried to update AIRAC Navdata from www.navdata.at but am unable to to access the site is there an atternative web address?thank you for reading this messagePaul

PaulRegarding your second question..... as i understand it you will only get vnav data once you have keyed in a/c weight and fuel and Cruise Flight Level into the FMC.Peter