Inspiron 7359 screen is black [Closed]

I have a new Dell Inspiron 13-7359. The screen comes up black when I turn it on. I have walked through a bunch of the suggestions on the Dell site and still no luck.
It does work if I use an external monitor, the touch screen even works with the external monitor. I will then shut it down, disconnect from the external monitor, turn the laptop back on and viola, the monitor is working.
Next time I turn it back on though, it isn't working.
I have only had it about a month and can probably get it replaced but I hate dealing with Dell tech support!