My acer 290 laptop was used on battery power and went off it was left over night without putting power supply in and turning it off properly. When I went to power it up the next day it did not power up, the light for power came on and the battery light blinked for a while. The battery light then went off and came back on fully after a couple of hours. On turning it on initially the cd rom made some noises but that’s all and the screen remains blank the cd rom light blinks while the cd rom makes a noise but the hard drive light does not come on. can any one help with ideas??