I'm back on the Citation now for a while (Bravo) and can't for the life of me think what a co-pilot could possibly reach that would cause the screens to go blank. There is NOTHING on his side that I can see that would cause such a problem. Everything related to ac and alectrics are on my side.
@Pace, it seems you don't want to drop your co-pilot in the sh1t (which i completely understand and admire), but please, for my peace of mind tell me what I should "look out for" to stop a brand new 200 hr co-pilot from doing the same. Please don't mention any names, but give me an idea what I should do to prevent such a serious incident happening, as I would really not want to be fishing around in the dark trying to sort out a problem that someone here could help me avoid. Many thanks for any flight safety advise.