Realy nice game, like it a lot.
However, Im running dual display and when exiting the game the second monitor goes black, this happens with almost all LWJGL games in fullscreen, dont know if its just my drivers or a bug in lwjgl, or how its supposed to work. my workaround is to store the current displaymode on startup, and then setting it back before destroing the display.
Its a bit annoying couse I have to change my display mode 2 times to get the monitor alive again..
oh and my card is a geforce 5900xt.