Hey Carmurph,
I no have no sparkley new Altmill. Not even a rustly old one either, so I am the last person to take serious when commenting on sarkly new Altmill problems, but.. I feel it!
It was my fear, when I fist got my sparkly longmill, that I would not be able to get it running and I would get stuck in a viscious circle of computersaisnoooooo.
Since I have roamed this here forum a while and see many topics pass me by. So maybe the answer thaat will make you move on, is found in one of these, no?
So I typed error 10 into the search engine and found this promissing topic that has the same feel over it as yours. It also has a solution that might help you out.