Notes sticking with KORG K61P MIDI Keyboard

Hey guys and gals:

i finally got my KORG K61P MIDI Keyboard working in Garageband. Only thing is, a lot of times wheni play notes, they stick or hang. Now, i've noticed with some looking on other forums that people are having similar problems, but i haven't really found any solutions, so i thought i'd ask here.

i have the keyboard hooked up straight to the MacBook Pro with a USB cable. Everything seems fine except for this sticking. If you need any other info that i'm missing, please ask. Desperation! LOL