I was looking through some Microsoft related website, looking for something about the recommend installation process and saw some reference to build 7600 while there. I noted it at thee time, and though I didn't think to remember which page it was on it made me curious enough to go to Microsoft Help and Support and asked about it while mainly concentrating on what I was mainly curious about it. I did mention it very specifically, asking if was something that should be installed as an update to make the 7100 a bit more up to date. They've been pretty good about their responses, so maybe I'll have an answer in a couple of days. If so I'll be sure to pass it on whatever it is.