Midi/pro tools

When press space bar, prootools doesnt sync to the mpc 2500. the mpc starts and stops on its own.

can anyone help?

Thanks in advance.

I have the same exact problem. Ive came to the conclusion after about 2 weeks of pondering/investigating that it has something to do with the MIDI drivers. Im currently backing up my PC so I can reformat the hard drive and start fresh and see if that fixes it.