I purchased a Rescue 911 recently and when I go into settings it shows 150,??0,000 for the 1st replay level. I set it to factory defaults and it shows the same thing. I'm trying to find out if its a RAM or ROM issue. The RAM passes its test but I don't think that is always accurate. Does anyone have the checksum for the 740/2 ROM for Rescue 911? It will display when you turn the game on. I would like to verify mine is correct.