Hello,same problem here, although with registered FSUIPC ver 3.99.It worked OK until I used demo version of FSUIPC (unregistered), but as soon as I bought and registered it, the problem with Airbus throttle being all the time at 50% appeared.Any help or advice would be much appreciated (but I don't wanna go back to unregistered FSUIPC, even if it may work that way again).