Me, again - I think I am thickI have been trying to get this working - at present the following:1. Compiled and downloaded (34840 bytes) the stock standard RC1. Downloads 100%.2. Power up from USB, without any ESCs connected i.e. only the Receiver and APM.3. The lights ABC lights on the IMU flash quickly and then dissapear. The TX/RX lights work when I talk to it as expected. The blue power LED on the IMU works.4. The lights on the Mega board work as follows, Blue PWM flashing, Red and Orange on constantly.And thats all that happens - I cannot talk to it with Configurator and if I monitor the serial - nothing comes out - even if I try serial commands.I have followed the guide for serial atec and think that is all setup correctly.If I read what lights should be up on the IMU - the ABC lights should be on after a fix ?I hope I am just being thick here.