"Insufficient Memory" Error with no samples loaded? Bad RAM?

So I just got an insufficient memory error while only using the MPC as a sequencer for other gear, no samples loaded, only 2 midi sequences. I have 128MB RAM and running JJOS.

Is my RAM faulty? Anyone with advice on how to troubleshoot this?

Thanks
R

Remove the RAM chips and see if this fixes the problem. Also update JJOS to the latest version, just to rule out any OS bugs.

I've re-seated the RAM card, so far so good. Will update JJOS too, thank you!

I tried it and Yes ! I save a lot of Ram ! From 0,50 GB per track (for Chamber Strings), I now use about 30 M !
My Mac and me say thank you !
Kodi Lucky Patcher nox