important garageband quuestion

[2thousand9]

How do I change the polyphony settings, so that when I hit a different note on my midi sampler thingy it cuts whatever else is playing on taht track off. I use an MPD24. pelase help

[jackerin]

my midi sampler thingy
If you mean the software instrument track, then there are only a couple of generators that do monotone sounds, afaik. If you have a third-party sampler you should probably read the manual or the maker's help page.

It would also not hurt to check your spelling as that makes you come of less as the "how do i maed cumptah maek sound?!?"-type.