My MPC is acting up

I loaded up a drum program earlier and I could not use CUTOFF or RESONANCE. My first thought was the Qlink knob. So I used a different Qlinks. It didn't work!

After that didn't work, I tried PAN, AMPLITUDE, and others.......they all work.

Perhaps it needed the OS to be re-installed? I did that, and still not working!!

Any comments?

this could be a stupid question but, did u activate filters in program section? did u set edit to "all"?
i saw in others post that u have problem with aksys too, maybe your os bin file is damaged or something (i think this isn´t a hardware problem), try downloading it again...
good luck