Well my PMDG 747 went amonk recently. It was all fine but two weeks ago, the electrical system went haywire in flight. The electrical system for the right side of the aircraft failed in mid flight starting with engine # 3 and then after I fixed it electrical system for engine 4 failed and then when I fixed it engine 3 failed again. I can hardly managed to climb to my cruzing altitude. I have checked the PMDG options and disarm all failures (I have none before) but it keeps on happening. I have finally got to switch off engine 3, disengage the autopilot and fly mannually, reprogram the FMC. It is a hassle to say the least. Worst still I normally fly on 16x speed when I flew the plane at any distance > 200 nm and that crashes the plane when I'm not watching. All other subsystems are fine except the electrical system and bleed air

Anybody has any idea what is happening?