Howdy, I'm sorry to make my second post a horror story, but I am anxious about my OM-D kit that has been back for service three times. I have finally deduced that it was a (kit) 12-50mm lens-function failure that was causing the camera to do very strange things when powered up. It is on its way back from Hauppauge right now; I have learned this much from an online service order diagnosis/comment with "exchanged" on the lens. The intermittent symptoms upon powering up ranged from the camera locking up and begin hunting on focus, firing, with no shutter release button function, and finally, no power switch OFF function (had to pull the battery). First trip, (body only) they upgraded body firmware, second trip, (body only, despite my suggestion that the lens go too) found nothing amiss with body. Then, I plugged the home-alone 12-50 lens on my P3 and the PEN went berserk. That's when I sent the lens down and apparently they have concurred with my accidental diagnosis. I can provide more details if anyone is interested, but would prefer to wait until it's back in hand and confirmed "cured." FWIW, it was an early model, arriving here April 17 and I had updated firmware once.