Can someone clue me in on this? I'm trying to change some of the defaults on Defender. When I hit F2 and enter the config, I can't get past the first screen. I looked at all the key mappings, and Auto Up (whatever that is) is set to F2, and the Advance and Service switches are set to the + and - on the keypad in the Defender config and also there are service switches set to Z and 9 in the general MAME settings. It seems like no matter what combination of those keys I hit, nothing happens.
What am I missing?