my lap top is brand new, this is my 4th asus laptop that i have traded in the last 2 had the same problem. My notebook while watching video, or simply online will shut down out of no where. the screen will go black and a few seconds later will turn off. i turn it back on and it keeps doing the same thing the starting screen will flash, then black out, and shut down,. i have to repeatedly keep trying to turn it on and then plug in the charger. eventually it turns back on, but who knows for how long. please help i have warranty but i don't know whether to return it for a different brand or fix this. PLEASE HELP!