Trying to do bouncing ball in delphiX

[cannonfauder]

Hi Im trying to write a bouncing ball (hole in the wall) with delphi6 and delphiX Ive managed to get the ball and bat to move in the right direction but after the ball touches three sides there is a stack overflow error but I didnt use a stack how do I either increase the stack or reset the stack while game is running TIA

[LLXX]

Are you using recursive functions? Don't.