Hopefully you bought it at the LBS.

Either way, they can help. It's entirely possible that there is something very simple and easy to fix at the root of the issue, a professional will sort it out for you. Without being able to see and touch the bike it is near impossible to say. One thing is for sure, tinkering with it without being familiar how it works or how to troubleshoot it can cause significant, possibly catastrophic damage.

And when you go to the LBS, take beer.