When I try to load program data from the M1 to my PC editor I only get junk. It starts loading fine but after a few programs it seems that no real data is received anymore, only junk.

I can send data ok from the PC to the M1.
I don't have dificulties with other synth's (XP50, TX7, MT32); that all works perfectly. Who nows what is wrong?

Jan-Peter