Ellatrickett

Help....! My Presario CQ61 shut down yesterday and wont start. When i press start button, LED lights all flash on and off, the fan starts and then it shuts down again. It then starts the process again and again but never starts. Have logged onto compaq website and the problem is listed there however have exhausted all the troubleshooting tips they give (testing the battery, hard reset, etc.) and still nothing Any advice...? Thanks a million! :)