As you may know, KOF XI has progressive scan in Japan, as does NGBC. Neither title has that option here. I contacted SNK to get an answer...here's what they said:
"Regarding KOF XI progressive scan…The US code is based on the PAL version of the source code and the support for the progressive scan mode was disabled in that version of the code. This means that the US and PAL versions do not support progressive scan, but the Japanese version does. This also goes for NBC."
Basically, I think the port must've been done by Ignition, and then used over here. Progressive scan doesn't do much for PAL TVs, so this almost makes sense, but with HD TVs out there, I don't see why they'd do that - and disabling it of all things, it seems that'd take some extra work! Somebody might be able to hack that though...
http://www.insertcredit.com/archives/002129.html
