Hi folks - newbie here with the same or similar problem. I have a standalone copy of A10-C from 2011 that I would like to run inside DCS World 2 (which I have installed). I have bound my standalone serial number to my new DCS account, and have installed A10-C - it shows as installed in the Module Manager along with the two free planes. However, the serial number shows as 'No Key'. I assume that is problematic - and may be reason why I cannot use any of the planes, and have no terrains? Any ideas on how I can get going here? Nothing works, all DCS world menu items that actually let you do something are grayed out. I have logged out several times, and back in, waited a day and tried again etc. Not working....thanks in advance for your help. And let me know