Hello All and Happy New Year. Today I update DCS World to the latest version and now it on show the "Aircrafts name is not authorized to be used with your account" Please, provide a valid serial number" It now show that I have seven aircraft on the bottom instead all the other aircraft that is available. In the Module Manager it shows about twenty aircraft install. Dose this mean that they are install but I just have to purchase them to activate them? What are the standard aircraft that comes with DCS World? I have the A-10C, C-101, F-15C, F-16C, F-5E, F/A=18C and the TF-51D. I also purchased the Nevada and Persian Gulf.