My experience with D600 dust issue.I found sensor dust problem with my new Nikon D600, and sent the camera to Nikon service center in New York, thinking of a quick turnaround. The online status of repair turned to B1 repair category, "Parts Hold", the same status for a week now. I keep calling them asking for an expected time (ETA), and nobody seems to know.I spoke to the dealer where I purchased, and they said to get the camera back from Nikon, and return it to them for a replacement or money back, since their 30 day return date is closing. Requested Nikon to return without repair, and they won't return it without repair, nor give me an ETA. Apparently, it is against their policy to return cameras without getting them back to Nikon standards. A catch 22 situation.Many of my planned events are in Jeopardy now.The pictures of D600 are great though, but for this problem. It would have made Nikon in good standing, if they were little more responsive and proactive to this problem.