ash, i don't know what's wrong. is there any other type of error/info that maybe useful for us to hear?
urquan2x, did you try
right click on kof2k3 > properties > misc > changing the bios to different ones
im not sure if that's what you're looking for, but thought i'd mention that, as that's how you switch to/from console and arcade mode in this case.
i tried to play it in neorage and it did load although
it only shows some test screen but anyways, my mame32 file
must have some error.
what page in this topic where a link to the working mame emu