Simultaneous function of dual Saitek pro yoke for FSX in one pc

I have recently built a two-seater cockpit (PIC and F/O) of Cessna-172 decorated with Saitek's entire range of instruments,panels and controls etc. and four monitors for front and flanks view. To give the cockpit a closer reality,I have set and configured two Saitek pro yokes as well in the cockpit for dual control of PIC and F/O as per the instructions in its manual. But it is a matter of great concern for me that only one of them function and second goes out of configuration with no response at all on the aircraft.

Is there anybody to help me to make both the yokes functional as and when required to use with the

words "I have the controls". I will be greatful.

KALIM