Williams Big Strike Bowler. I am looking to confirm the CHECKSUMS of the three ROMs used in this game. I have the following I.C. (14) 02B4 I.C. (17) 0726 I.C. (20) 4511 Has anybody saved this software from a working machine? It would appear that there may be a problem with the software available on the internet. Any help or confirmation would be greatly appreciated.