After 5 months I finally got some aircraft to appear and fly the plan!By default they were being compiled into a Adobe folder on my desktop.Stopping this made them appear. But my joy was short lived and I have lost them again. Out of 80 plans I can only find 2 or 3 in various folders on my computer.When I send plans to FP List and get the dropdown menu ,save file set is usually greyed out.I click on save as and get a save in my documents window with Flightplans_.txt as a choice.If I click on this it says it already exists do I want to change it.I assume this will erase anything already in there so I dont.I have tried typing in Flightplans_X.txt where X is the number I gave the plan when creating it.It then does appear in My Documents folder. In the drop down menu I click Compile bgl.The window says compile to C:\....scenery\traffic_X.bgl and I click compile. Sometimes the top slot is empty so I type in the above string and compile. At the moment after doing this no aircraft are appearing. Strangely if I create a new airfield and do a plan,no aircraft appear but a few feet from the parking spot are three of the FSX default ground vehicles. To summarise this after all this time I still do not know how to save the plans,make them appear and keep appearing each time I switch on the computer.