OKay there was a creak in my car coming from the right rear window. I could NOT for the life of me figure what was causing it. Since the car is still under warranty, I took it to the dealer to let them figure it out. They weren't exactly sure themselves but they told me they had fixed it, but they were very vague on what they did and when I picked up the car, it seemed okay for a little while. An hour later, the creaking starts again (it only happens when i accelerate or brake). Now I know it's nothing majorly WRONG with the car, it is just annoying and i only notice it when i turn the music down. Is it worth going back to have them check it again?

I say get it done at your next oil change or something if you do them at the dealership... don't go out of your way to do it

Thats a good idea. A while back Kings Infiniti had a steal - $175 for a lifetime of oil changes from them so I always go to them for it.