Hello again wysota,

Thanks for replying.

Hmm.. No Im not familiar with any debugger.. I have gdb here, then I tried to run my release.. I proceeded up to the point where I invoke my brightnessDialog.. Then the expected happens, the program suddenly quits.. GDB reported that program exited with error code 01, meaning abnormal termination right?

What should I be checking right now? Sorry for the troubles..