HELP!!!! My Screen wont show at all!!! HELP

PLEASE HELP ME
My Acer Aspire One is around 11 months old and now when i turn on my computer nothing happens, the power button says its on but the screen is black. I remove the battery and clean it then put it back and put it on charge but the screen STAYS BLACK. I left it once for 20 mins but it stayed the same. I sent it to Future Shop and Best Buy and they said they cant do anything about it. Im really angry, i want to just smash it but i want it to work soooo much.





PLEASE HELP ME PLEASE DONT PUT SPAM IM REALLY FRUSTRATED, THIS HAS BEEN GOING ON FOR A WEEK