I apologize as I'm sure this has been discussed (as a matter of fact, I KNOW the dust issue has been discussed, because I researched it thoroughly before buying). But my question is this: I was just able to get my hands on my D600 today, it's got less than 100 shots on it, and it definitely has the dust problem. So, I was wondering if I should clean the sensor (although I've never done it before but I think I can, based on what I've seen on YouTube) and try again, or send it back and try another one (I'm sure I'll have to pay shipping)? I have 30 days to decide! What's your thoughts? Thanks!