Response from Jonathan: Timothy,

Unfortunately this is a pretty common “issue” with Tron cabinets. This little video glitch has something to do with the way that some Midway MCR games output their graphics to the monitor. There’s no fix for it as far as we know and degaussing is not going to get rid of the issue. You can “hide” it by increasing the size of your picture using the monitor adjustments but that’s pretty much your only option if you don’t want this to show up on your monitor. You can read more about this issue on the KLOV forums at this link: http://forums.arcade-museum.com/archive/index.php/t-40684.html. Hope that helps.