While your opponent computer is playing go on pressing Alt+F4
it will become a foul and a miss.
NOTE:dont press while u are playing it will quit.
STOP THE CUE BALL WHNEVER AND WHEREVER U WANT :!!!!
when ur playing the game just press the close button, this wont close
the game but it will stop the cue ball when u press the close button
thus stopping ur opponent to score.