Good that you got that figured out. We never had a problem with the player's name. That might have been because we had the leaked "hacked" executable. I really like the way Mojang handled this. While they didn't officially support people not buying their stuff, they also didn't want to deal with a "Demo" of the game. So they hacked their own executable and made it so this version could bypass their verification servers. The hacked executable had the full functionality of the bought and paid for version up to Release 1.2. All throughout the Beta, and even the first two Release versions, you could play on either and you wouldn't know the difference (well you would, the hacked version would have a message in the upper corner telling you that it wasn't a legit copy). With 1.2 though they re-did some of the coding of the servers and while the "hacked" versions still work, they aren't as functional anymore. I'm not sure when they added 64-bit Java support, but the hacked version doesn't support it, and won't even recognize it if its all you have installed. I imagine soon it will be to the point where the hacked EXE will be completely non-functional. Mojang thought that if they let the people pirate the game while it was in the Beta, that most of the people that did that would eventually buy it, and I think their success bears out that thought.