I'm trying to compile MAME0.129 with MKChamps diff file but i keep getting the same error. I've no doubt that i'm doing something wrong because other people have compiled MAME0.129 without a hitch. Any help would be appreciated. src/emu/sound/ay8910.c: 751: internal compiler error: in assign_386_stack_local, at config/i386/i386.c: 13482 Please submit a full bug report, with preprocessed source if appropriate. see<URL: http://www.mingw.org/bugs.shtml> for instructions mingw32-make: ***[obj/windows/mame/emu/sound/ay8910.o] error 1 Thanks, ian.