@ajacks504 Hello ajacks504. Yes, I know this reply is almost 3 years old. I am having the same issue and just changed to "enabled" wherever it said "disabled" under mame. The next question is I do not have the line
input_player1_mouse_index = "0" underneath the device =" mouse line" anywhere
Is this something I need to add? I'm sorry I just don't understand all this. I'm not very computer savvy when changing the config stuff. I don't have a trackball yet but I have a spinner right now and I cannot get it to work or be recognized when playing tron. Thank you. hopefully this msg finds you