16 level tuning from the previous mpc's to the 4000

When I load songs made with 16 level tuning from the 2000 and 3000 they don't work properly when I load them into the 4000. Is there a setting I need to turn on in the 4000?

I HAVE THAT PROB TOO.....IM MADD NOBODY HAS ANSWERED U!

Oh shit this is an old post. I found that if you go to seq edit in every sequence and you scroll through them it makes the sequence act like it did in the previous model mpc you made the track on.