Some time ago, I posted a thread here detailing my experiences with dust issues in 5 brand new d70's...If you recall, ALL of mine had dust on them with NO lens changes. Just wondering if your ccd already had dust on it prior to the lens change? Did you do the test to identify dust on either the camera you returned or the replacement? I believe MichelleA also had dust on her brand new d70....so, it seems to be the norm. Since my posting, several new methods of user cleaning of the ccd's are being reported. I'm still on the sidelines after returning my d70's...but am tempted to jump back in.....

In youth, we learn....with age, we understand.