I have a lot of problems with the serial connector. I'm using three different Windows 7 PCs, all perform the same. I'm running the latest FTDI drivers. Unless I follow this procedure exactly, I cannot gain connection to the Radians, and even then it does not always work. The com10 port shows up, but the software hangs when connecting. 1. Disconnect USB interface from PC 2. POwer down Radian 3. POwer up Radian 4. Connect USB, watch for orange blinking LED 5. Start software on PC. The other, more serious issue is that the reading of the PPM signal is glitchy. I'm using a Graupner MX20 and a GR-24 receiver with latest firmware. The receiver is set to SUMO-12 (I've trued 8,10,12,16). Particularly glitchy is channel 5, which was the channel I was using to control. When I say it's glitchy, I can see the other channels above channel for jumping in the channel monitor when I move the sticks around. Alos moving are the channels above channel 8!??? Anyone else seen this?