ZSNES board

i tried all those different versions on that site and it doesnt make a difference. does anyone know what could possibly cause it to eat that much cpu?
a problem with my comp, perhaps, instead of anything wrong with the program itself?

i had been using 1.36
i downloaded the 8/03 wip, windows version, from the link in the "newest version of zsnes, get it here" thread, and it still uses all of the cpu all the time

its a p4 2.4 ghz, 512 ram, only 32 mb of vram, but i think that should really be enough for snes emulation, right? i dont think ive changed the video options at all, so whatever are the defaults. i dont have sound enabled at all, would that help or hurt it?

so i read that post about how its normal for zsnes to use 99% of the cpu before a game is loaded, but mine seems to continue even while the game is playing. it seems to me that this is not normal, can someone tell me how much it ought to be using, and even possibly help me fix the problem, if there ...