Pete, I will have to get Beaky (Andrew) to study this on my TWISTER this weekend to work out what is going on. Mine works fine and has never played up so I will get Andy to study the schematics, then have a real good look under my playfield, and see if we can be of help.

To me, it sounds like the magnet is not activating properly, which if working ok, would then trip the disc to spin properly.

I will have a good look tomorrow being Satday since I am not working and see if we can come up with a valid reason.

Also, what version software are u running on your roms, or what does it say on machine dmd start up ?

Brett