squeal on startup (audio)

[N9QGS]

I have a squeal whenever I start the car sometimes it wont be very audible but it doesnt it most times. since you can't put a sound on here as an attachment, Please goto http://public.me.com/n9qgs go under Toyota Yaris and listen to Squeal.mp3

Now the facts, I had the Belt changed by a local garage and took a toyota belt that I had purchased from the dealer, the squeal started a couple weeks after the belt was installed.

Did they possibly install it too tight, loose? is it what they call glazed, do I need to replace it, maybe have someone else put it on. I would like to not have the car make people stare when I start it. haha

It only ever is audible on start up, never squeals at any other time.

Thanks for your help, Ron