New MacBook restarts while streaming video

Hi,

I got a new macbook pro yesterday. I set everything up and started to watch Hulu on Safari. last night during a single episode my computer restarted itself twice. Then I switched to Chrome and everything was fine. Today, I was again watching Hulu on Chrome and my computer just restarted again. Whenever it restarts, I get a message box saying "your computer was restarted because of a problem". Is this normal? Should I take this laptop back?