Throttle's with fs2phidgets

Hi,

I just finished my Tq. I calibrated spoilers, engine throttles and flaps with fs2phidgets using phidgets boards and pots. However I have a very strange problem only with the throttles. When I start to give trust, engine 1 or engine 2 throttle go to idle. I went to fs2phidgets to see what is happenig. Both levers works fine and values of pots are stable when I do not move the throttles. Then I went to FSVariable and I noticed a strange think. Moving each lever from 0%-100%(0...16384) the values went suddendly from 9000(assuming 50% of lever) to 0. If a move more then the value comes back to a normal one and then go to zero again. As you can imagine, it is impossible for me to taka off.:mad:

HELP!!!!!!!!!!!!!!!!!!!!!!!!!