It's not the picture that's the issue, yes the pic looks grainy but that's because it was a screen shot from one of my pics on FB, the " " " that you can just make out happen on any screen, sometimes it's worse than other times, I will try and add another pic when it happens again to demonstrate
I agree, the issue is clear to see - that's a weird one though, looks liked ghosted characters. If a hardware reset doesn't work on that - I'd send it straight back!