When I turn my laptop on it just says "acer" then the little loading circle underneath then one beep then the screen is black and then nothing!! I've tried alt-f10, ctrl-alt-del. making the battery go flat then starting up again. It is responding to nothing at all! Nothing new was downloaded or anything. It was on and working one minute and then when I went to use it the screen was black like it was sleeping and the. Nothing at all!! Help!!! I'm renting the laptop too so if I give it to them they will charge me a ridiculous amount of money when I know nothing has been done to it to make it like this.