With the crazy display issues ,
Try going through the audits and reset them all , using the front door button , and the rest button on cpu , reset all back to zero , then reset replay scores , set them to whatever you want , And put in a new high score to date , This might clear up all the random crazy display issues. I had a similar thing happen with a sys 1 and this solved that problem ... good luck ...
see below i got mixed up with the Bally/Stern way of re-setting audits
