mpc 1000 pad malfunction after period of time

Greetings i have a problem with my mpc1000, currently running on JJOS1 4.99, it seems that after 2 hours of using it, the pads seem to loose response and i can't use them at all. Sometimes after i restart the mpc it turns them back on, but this is like once in a week that seems to work, otherwise it stays like the previous state explained.

if you got the red and blue you need to change the pad!!

Yes i got the red/blue mpc so tell me which of the following products should i order.. ? since this is my first experience with mpc and problem of such nature.

http://www.mpcstuff.com/akai--mpc-1000- ... x-upg.html

http://www.mpcstuff.com/mpc10mpkpads.html

http://www.mpcstuff.com/akmpc10exset1.html

you need to purchase the first link which is the "pad upgrade kit"