I'm having a similar problem with Saitek throttle levers. Have 2 levers mapped to power levers 1 & 2. When I start a flight, I can ground idle, beta and reverse. Once flying, the levers stop at flight idle - as they should. BUT on landing, all 3 wheels on the ground, can't go down below flight idle, which is rubbish for slowing on the runway or taxiing. Anyone help?