BINGO! Many thanks John, I also have to remember to open FSbuild as Administrator ( Win 7 ) otherwise it doesn't export to the PMDG FLIGHT PLANS folder - even though it tells me that it has !! ( it will export to the Flight Simulator Files folder in My Documents qiute happily without Administrator rights though !?!)Once again, many thanks for your help, I was quite close to smashing my laptop into tiny atoms.Ian Robertson