Hello all,
Hopefully somebody can help me here? I've been through the forums to no avail.
Just invested in the 737-200 adv on FSX, and I am unable to start the APU. 
I've set the default cessna with everything off and saved as default.  I then open the 737-200. I'm switching on the battery and the master avionics. EP is available. GRD power is on, APU bleed air switch in on. Fuel Pump 1 is on.
APU start button does nothing at all at this point.
I guess I'm missing something somewhere, or using the wrong sequence!
Advice for the newbie please.
With thanks