XPS 8940, new, won't start up

Hi All,

I just got a new XPS 8940 today in the mail direct from Dell and upon first start-up it seems to start to turn on but then the light just turns to a blinking yellow power light so the power light blinks white and yellow at different points but won't get solid and it never seems like the computer is turning fully-on. I'm not sure what to do, any thoughts? Thank you!