thanks for the replies; it's a great frontend, minwah. i went back to mess with it, and i've had only one other problem, again with MAME.
if i've played a game once, i can't play again. it won't load. the mamewah log shows it's trying to run the emulator, but where the game name would go, it shows <mameconfig version="10"> {flags=18}, so it looks like it's trying to run the following:
c:\mame\mame.exe <mameconfig version="10"> {flags=18}
i'd copy and paste the line in the log but my box with the mamewah is somewhere else and has no NIC. the first time i play the game from mamewah, works fine. if i try to run the games from windows, it works every time. any ideas?
(also, completely OT, is it strange that my 800mhz, 256mb box lags in Outrun, some 32x games, NBA Jam TE (mame), etc? i think it may be a sound thing)