sorry for the noobie question but if i delete the config file and the NVRAM file will that change anything on my other 1500 or so roms? because the other 1500 roms are working great and dont want to change anything in those roms as i have them configured and working properly just cant get the darn Centipede to work. again sorry for the rookie question.... here is a screenshot of where all the centipede roms i have tried (rev1 - rev 4) freezes at.