Hi,
I am running Win7 on P8 on my iMac (10.8.4) which has two more monitors attached, mainly in coherence mode. And yes, I have also problems concerning that sometimes the wrong Win7 Window is on top. But generallythere are not many graphical glitches. I hope the window stacking problem is gone with P9. 
I do had big problems when putting the iMac into sleep. After wakeup the coherence mode is gone and cannot activated tediously (needs many annoying mouse clicks). My workaround is to avoid setting my iMac into sleep which is useful anyway since this is my office machine to which I connect from home sometimes.
I will definitely wait until the first hot fix of P9 is released.
regards
StefanP
					 
				
			
			
			
		 
		
		
		
			
			
				Last edited: Aug 30, 2013