I'm not sure if this was done on purpose or not but the address your qt gives doesn't change. It crashed a lot for me, I quickly got the address and started mining at 1gh pool. Looked up the address on there and surprise! I've already mined some coins and have been for awhile! Anyone who used this qt beware.
I pulled it as you could not access the menus in it. Others reported crashing. I have been using it and creating new addresses without problem. Was compiled from the source here:
https://github.com/Max-Coin/MaxCoinWhat address was this?