MPC getting hooked

Hi I have an internal zip 750 Mb , lately my MPC keeps getting stucked and have to restart it to in order to keep working (I've lost some beats because this) What is causing the problem?
Thanx

what ver OS don... ? i havent talked to many people that have the 750mb option. i have the 250mb, and do also experience some system crash's. the screen will fill up with random ascii characters. i just put it down to an overflow of sysex data, cause it tends to only happen when automating the juno.

Hi, I have 1.4 version of 200xl system could this be the problem?