Cessna 172 erratic yoke and throttle - Lance, in Maui, Hawaii

Hi:

Two weeks ago I purchased an HP desktop, Windows 7, 2.8Ghz, etc. I also purchased FSX Gold, CH yoke, and pedals. In real life I fly a C 172. I have yet to make the FSX work properly. The two issues I have are throttle response and erratic yoke response as I approach to land. On take-off the tach reads a max of 2200RPM and then very gradually reaches take-off power of 25-2600 RPM. When I want to cut back the throttle to idle, the lowest RPM I get is 14-1500 RPM, making landing virtually impossible. Also, as I approach the ground, the plane becomes almost uncontrollable.

Can you help me or direct somewhere where I might find a solution to my problem? I have been unable to find any help regarding these problems.

BTW, I have calibrated the yoke and throttle numerous times using FSK calibration tool as well as CH calibration. All seems in perfect order. I have also installed and re-installed FSX at least 4 times and even installed it on a separate drive. I am getting desperate!

Yours truly,

Lance

Maui, Hawaii