I was in the Apple Store a little while ago playing with the new iMacs (while anxiously waiting for mine to arrive!) and noticed that two people brought in returns while I was there. I asked one of the workers if they had seen many returns since the release. They said that there had been a number of exchanges due to problems out of the box, and that the weird thing was that they had all been iMacs that were assembled in the US. I decided to take a trip to another Apple Store about 15 minutes away and asked the same question. The worker said they had noticed a similar trend, though there were a couple that had been returned that were made in China. Not sure they should have been telling me any of this, but it is interesting! Anyone have an "Assembled in USA" iMac? How is it holding up?