Recently my laptop has been freezing up after 20 minutes. I have to turn it off by holding the power button and having to wait 30-45 minutes. But after it turns on same results. If I don't wait 30 minutes to turn on, I hear the fan turn on but no screen display. Some of the other indication I get are the power light is on and the MP light is on. I am asking if there is anything else I can do