Alfine hub noise

Hi,
I've recently got a new alfine rear hub because i was told they are maintenance free and quiet.
However, mine seems to make a LOT of noise. The noise ranges from loud clicking noises in several of the gears to general loud humming noise.
The hub works fine and runs great, however I really want a quiet ride.
Can you have a look at my video below to see if this noise is normal (sorry for shaky camera -I was changing gears with one hand and holding camera with other)?

http://youtu.be/KyY55fziE6g

Are the dots correctly aligned?

Are the dots correctly aligned?

yes

Maybe the cable has stretched, have you tried swizzling the barrel adjuster?

Is it new, as in never been used?

I find my gear 5 (8 speed alfine) hums quite a bit but apart from that it's all good and pretty damn silent. There is the occasional click/clunk when changing gear.

The ticking noise is odd. Mine is pretty much silent, to the point that every other noise on the bike drives me mad!
I did think at first that it might be the disc that was making the noise, but it seems silent when you freewheel, so that rules the disc out.
Is the chainline good? No chance that the chain is riding up the edge of the chainring or the rear sprocket is there?

By the way, if you are using an original Alfine chainset, the chainring is made of cheese. When it wears out, buy a new 9/10 speed Stronglight one, it fits and works fine. If you shop around the sprockets are as little as £4 each, so I change mine quite frequently.
Great hubs though, mine's three years old now and no problems with it at all. I took it apart to check the seals and all the grease was still white and perfect.