the reason for you proplems is your is the Graphics card, MAME doesn't use your graphics cards (kinda), MAME always renders in software, so it doesn't use any form of hardware graphics acceleration. hence you'll get good graphics compatiblity with games in MAME but you'll only be able to play the games your processor has the power for. you are getting good quality in software acceleration (as you will) but poor in hardware (Zinc) because your card is low par i have 900Mhz and a Geforce 4 and zinc is slow for me with only a few games playable. if you wanted to, and you do have a AGP slot, i suppose you could buy a cheap (maybe budget) card, but you really don't have the horsepower to justify it, imo Zinc would stilll be slow (although it would help other things) sorry, you are like me, somewhat underpowered in todays times if you like NEOGEO stuff might i suggest (if you don't have it already) Final Burn Alpha, this is a very fast emu and features some other cool games, (also a good google hunt for a newer driver for your card might help a little) miko.
