Alesis Andromeda A6

Help.  
The manual really doesn't cover this well.  I have tried tons of ways 
of making this work and have come up empty handed each time.  

I want to sync the clock for the sequencer (or the arpegiator) to 
MIDI.  I know there is a function that can allow the clock to sync to 
midi and I have used that.  However, I cannot get the A6's clock to 
sync to midi no matter what I do.  

Any one have any suggestions?

Thanks