Alright, so I launch the SvC Chaos ROM (svchaosa.zip) and MacMAME loads it just fine. After the little colour test with the flashing colours and such, I get a crosshatch pattern and nothing happens. I press 1P start and get yet another screen, presenting me with red, green, blue, and white squares as a colour test; the number 5 appears at top right. I press 1P start again and get an IO test screen. I've pressed each button and switch listed and nothing happens other than a 1 appearing in place of the 0 for the button, indicating I've pressed it. I press 1P start yet again and get a sound test menu, great. Nothing much to do there, other than choosing each sound test. Press 1P start yet again, and I have the option to do a memory card test if I insert a memory card. Great, so I press 1P start and get… "Backup Clear, OK = press A,B,C buttons at one time". Pressing A,B, and C together has the same effect as pressing 1P start: a date and time setup screen, instructing me to set the time and date. I'm not particular about what the machine thinks in regard to time and date, so I change the numbers somewhat randomly and press D to set this as the time and date, per the screen's instructions. Press the 1P start button again and I'm right back to the crosshatch screen. Rinse. Repeat. How do I get out of this thing and play?