Ok, a few months back i walked away from comp n screen was black n comp still running. Held power button turned off n back on. Comp would turn on but only as in fans n lights. Then after a day or 2 it would work fine. As time went on it happened a few more times. Recently its bin happening twice a day. N now while im on it the screne will go black. And oh the mouse n key board lights go off when alll of thishappens. I replaced the 3v battery.. honestly would just buy a new comp but its an hp i paid 650 for it 3 years ago... sorry such a long explanation.. i couldnt find answer any where...