The romset from @SmokeMonster includes IIRC the patched version of KOF98. So those problems related to protection will not be present. The problem with KOF98 showing the RED DEADLOCK Screen aka "slot security check" seems to happen on MVS only and only on this new firmware. We're investigating it.A lot of people seem to have trouble with 98, during attract the characters disappear off screen as well as other glitches. I think DS patched most of them though.