Haven't tried this with any other hard drive games, but when playing Killer Instict, I was trying to map my controls, and the game crashes to Mame32 whenever I press "up" on either the P1 or P2 joysticks--happens right away in-game too. Almost like they're mapped to ESC or something, although I don't have that issue with any other game I've played thru Mame32. Using mame32 v.71....I suppose I should try to duplicate with the other .chd games, but I was hoping this was a known issue with an easy fix...thanx for any responses!