Check the Clock parameter in the Global Mode is set to Ext. ( refer page 36 ) If this is set to external, check the Nova is synced by varying the tempo of the Sequencer. If the Nova speeds up and slows down accordingly, Nova is synced to MIDI Clock. However it is possible to synchronise the LFOs, Delay and Arpeggiator to many different time signatures. This can lead to a situation where the Nova may be synced but synchronised at a strange time signature. Check the synchronisation parameters refer on page 67 for the LFOs, page 73 for the Delay and page 46 for the Arpeggiator for details.