advancemame and a arcade monitor

[GMZombie]

im working with advance mame and im trying to get the games like donkey kong and 1941,2,3 games and im sure there are others but i cannot recall right now. but what they do is display in double. is that cause they are in a different color range. im using a normal cga arcade monitor and pure dos environment. ati rage pro vid card celeron 300mhz with 65mbs ram and using the fastvid program...anybody who is using dos mame should look into this. it is great.