i have this acer aspire one netbook,was running fine an hour before and when i turned it on later,it shows the acer logo and jams. i tried pressing f8 and every frikkin button i can nothing happens,just froze on the acer logo,the power button is on and the fan is running. there an option to to press F2 to enter setup,but when pressed it says 'please wait...' and does nothing.