Dave Smith Instruments SYNTHESIZERS

I just bought a MEK and can't get it to chain to my Desktop Evolver.

Here's what I did:
MEK Poly Chain Out to Desktop Evolver MIDI IN (MIDI Cable)
MEK Outputs to Desktop Evolver Inputs
MEK Poly Chain set to 2
Desktop Evolver MIDI Chain set to ALL (???)
MEK MIDI set to Clock OUT
Desktop Evolver MIDI Clock set to IN

I hear only every second note and the MEK knobs don't do anything. The
sound comes out of the Desktop Evolver, and its knobs work.

MEK Serial number 00073
Desktop Serial number 1816 (pre version 3)

Thanks in advance for any help here.

- Paul