Where do you place the NAVDATA files so the FMC will work in FS2004? I load a FP into FS2004; place the aircraft, open the FMC then it tells me that KSEA is "NOT IN DATABASE" and says the NAV DATA is NOT_VALID. In FS2002 I have navdata in the FMCWP folder and it works perfectly. Sorry if this has been asked before but after searching the files and this forum I have been unable to find the answer.

Hi,Do a search on this forum with the keyword FMCWP and you'll get your answer in a lot of threads! ;-)Hope it helps,