TheRealSauron

i just bought jedi knight jedi academy from the appstore for my mid 2009 macbook, when i launch the launcher the screen comes up where it gives you a choice between full screen and windowed mode when i either choose windowed mode or full screen the launcher quits and wont open the actual jkja app. i have tried to re download and the same thing happens my computer stats processer: 2.13 GHz Intel Core 2 Duo Memory: 2 GB 800 MHz DDR2 SDRAM Graphics: NVIDIA GeForce 9400M 256 MB