If what I've read there was a bug in the initial release of the CPS-III Ultra Simm bios which causes Red Earth to freeze/unfreeze during gameplay. This is what my CPS-III with Ultra Simm is doing. If I understand correctly the bios lives on the TSOP48 on the SF3:NG cart. From what I've read, and if this is the case, this is quite a bit of soldering and is easy to mess up. Is there anyone on the forum offering to update the bios in North America, preferably Canada?