I bought my D800 last Aug 16th 2012, since then there are 9000 actuations without a single problem, until this morning I was out shooting some wildlife everything great until I got home, download the files all okay except for a dozen spots. I tried blowing them out nada so it's off to Nikon for a good cleaning & checkup. As a rule I send my gear in once a year anyways for a cleaning & adjustments. I suspect these are oil spots I couldn't remove them with my "Rocket Blower" I would wet clean it however, the D800 is still under warranty until the 16th of this month before the factory warranty runs out. I bought an additional 2 years of warranty when I purchased it. I am in the insurance business so I practice what I preach or rather sell So hopefully they don't take long to fix it - I heard in these "oil spot" cases they replace the shutter on the D800's. It remains to be seen I will keep you posted.