I got my E-M5 last august. Lately, I notice that a hairline crack starts to appear where the screws at the bottom bezel of the screen. The middle screw have a crack, the left starts to appear. See attached photo. I'm wondering, it's just me or this is typical? I called olympus and they told me to send it in. But I don't know why this is happening and I'm afraid it will appear again and again.