xl sounds changing like an LFO???

Well my mpc is acting funney again.every couple times i hit the pad for my snare and it changes as if theres an lfo with resonance or something weird. i've got it set on full level and i just cant figure it out , help!!! i went in the programe page and everything looks ok there so what could be causing this change in the sound??? its almost like a clicking

I get that too, I just don't hit the pad so much!
There are so much glitches with the MPC everyone has different problems! its a deep ting, maybe upgrade the OS?

Do you have an effects card installed that might be causing this to happen? When I use the "q" or modulation effects it does that. But I do it on purpose..