help dead pixel on my screen. how can i sort this out? im still under warranty with dell.

Hi im having problems after 1 week, it has drove me crazy, i have 1 bright dead pixel on my screen, i use my laptop for gaming and watching movies and it is always there, i have Next Business day warranty with dell, yet im worried if my laptop will be all loose after they have opened my Alienware laptop as i have heard horror stories, i really need it fixing but i dont know where to start,

Could someone so kindly help me i would be greatful, i tried to email the person who helped me last year but that dell person will not reply back to me,

If you have had a dead pixel before, you know how annoying it is, especially when you got a lovely video on with a dark seen and you see this pixel there all bright infront of the faces, it drives me crazy..

I really dont know if i have entered this in the right place and im typing of the dell website.
Thanks for your time, and thanks for reading,
Regards.