Reinstalled it again, and it didn't work. I did the following: started Mario Kart 64 rom (with PJ64) > chose 2 player > keyboard could not move (when i pressed star button or move buttons on keyboard it did nothing) > switched: player 1 keyboard, player2 controller > keyboard could move but controller couldn't :S
So you see the problem ? Player 2 just doesn't work, not keyboard