I began to notice a while back that the rearmost dial of my EM-1 was not responding very well. I had it set up to dial in the f stop during shooting and zoom function during playback/review. First it seemed to be related to the switch on the battery holder/grip not being in the "lock" position, but then it got worse regardless of the switch position. I tried reassigning functions to the other dial, but it still seemed to respond sluggishly or not at all. I ignored the problem for a few months but now I got scared and decided to send it back for repairs. Got the necessary papers, etc. But when I removed the strap, grip and battery holder, I tried again and the dial appears to work almost perfectly!? It might have missed a few clicks here and there, but it seemed to work pretty well... So I installed the battery holder/grip again and checked the dial function and it works just fine (well, almost, maybe 99.5%). I wonder if I should send the battery holder/grip along with the camera and a note explaining the sudden, inexplicable remission of most of the symptoms? I'm concerned that although I had/have a real concern and experienced a real malfunction, the Olympus service people will just think it's OK and blow me off as a nut case... Anyway, I worry the camera might malfunction again, perhaps after the warranty expires... Any ideas?