I'm getting some chain noise from my Surly Steamroller pre-built. It's definitely the chain (or fixed cog or chainring), because when I remove the chain, I can spin the rear wheel or pedals without noise. I don't think it's alignment. The rear wheel is pointing straight ahead, and I haven't touched the chainring or cog. Tension doesn't seem to have anything to do with it. The chain was recently cleaned pretty thoroughly (removed, put in bottle with hot water and solvents, shaken vigorously) and the sprockets brushed clean, and chain re-lubed with some wax-based lubricant.
When I bought the bike, it was totally silent. After a few months it started to make noise so I cleaned and re-lubed the chain. That solved the problem. But the noise came back after a couple more months. So cleaned and re-lubed again. No good. So I had the shop do a more thorough job with the wax based lubricant and all. Still no change.
Can I get rid of the chain noise? Or is noise just a fact of life with chains? It wasn't noisy when new.