Thanks guys.
Yep, I'm thinking it might be that 5101 chip. After I got it working the first time it wouldn't remember high scores and wouldn't pay credits when replay score was reached, although not sure if the later was due to the chip.
Just looking at big daddy, they have a kit with ram chips and new sockets for $35 so look like that might be the go.
Cheers
You can get them from Ken (Skybeaux) on this forum, send him a pm
