So I recently bought the Saitek pro flight yoke (w/ throttle quadrant), the rudder pedals, and an extra USB throttle quadrant for four engine configurations. All of the hardware functions flawlessly, but I can't seem to configure it for 4 engines. When I set the 6 levers for Speedbrake, Eng 1, Eng 2, Eng 3, Eng 4, Flaps (left to right) speedbrake eng 1 eng 2 and flaps work perfectly. However eng 3 & 4 jump up from 0 to 50% as soon as I take the levers off idle, they move up to 84% when the levers are at full, and if I bring the levers back to idle the engines stay at 50%. Again this is only an issue with my 3 and 4 engines. I was on the phone with Saitek support for 2 hours and they couldnt figure out what the problem was. Does anyone have any idea how I can fix this so I can finally fly quad jets. I'd prefer not to purchase FSUIPC and configure it that way, I'd rather stay in FSX. No I don't have the Saitek software installed (was getting phantom button). Help! 

Thanks

I was afraid someone would say that. I want to try and limit my purchases (ironically, since I just bought all this hardware).

I know this is a bit late but if you havent got a resolution then here is my sugestion to try.  I have the same setup minus the Rudder pedels.  Ensure that the 3&4 lever sensitivity slider is all the way to the left or right and the null zone to zero.  I am not at my flight sim pc to check which way on the sensitivity.  I have mune configured for a twin engine with the second TQ being prop2 and mixture 1&2.  I have no problems and use only the in game configuration to do my assignments.