I've never had a chain break on a bike until I got a Felt Q620 about a year and a half ago. The other day, a 3rd chain just broke. There is no way that I've put enough miles on this bike to justify going through chains like this. I've worn out plenty of chains in the past (stretching), on other bikes and always replaced them without them breaking.

Is it possible that there is something fundamentally wrong with the components in the drive train on this Felt Q620 that would unduly stress the chains?

I'm looking for some feedback before I go back to the lbs with my complaint.