A friend just bought a brand new ML-1 to put on location and it has been updated (according to the distributor). Well after playing a few games on it I found some bugs in the new software.
When I went to select "Trivia Whiz" I got to the point where I push the 'start' button on screen and it locked up with just a white screen and a spinning circle. Could not do anything else. I let it sit there for 15 minutes and I still could not do anything. No response to touchscreen, credit switches ignored, simply locked up tight. So I had to power off the machine, wait a minute, then power on again. After what seems like forever (the boot up sequence takes a good ten minutes at least) it came back up fine.
Then my friend tried Tri-towers and Run 21 and they both locked up too. We did the same procedure of powering down and back up again then the machine played fine. I think there must be some bugs in the software.