Ive got a Hp compaq 6910p that starts and works fine the first time. But after being shut down it wont start again. Ive figured out ill have to remove the battery and charging cable and then replug. then it starts just fine one time again. and the next time i shut it down i have the same problem again. Ive allso run it completly without battery, that does not help either. Can anyone tell me what the problem is please?