So yesterday, I was taking photos with my Olympus E-PL2, METZ AF44 flash bounced off the ceiling, and a couple of continuous lights on both sides of me for extra warmth. I noticed that even at ISO200, I get this strange patchy dark noise patterns (look at the shadows around the pants). I went through my other photos from the day and even the non-flash photos exhibit this. Is this typical? I don't remember getting that with my E-PL1. Is it because I put Gradation on Auto?