MPC live 2 - Screen laggy movement

Anyone have problem with the screen being laggy when playing a sequence etc.
the timeline vertical marker gets stuck for a split second and then jumps forward..

if anyone has any thoughts be interested to hear

Did you delete the factory content of your mpc? If so, you have to restore it, unfortunately..

thanks -no i havent.
i noticed if i turn it on and off a few times it seems to sort itself out!

How Full is your Internal Drive?

Probably the speakers making the screen skip