What he means is that there is an issue with the power on assembly, i.e. wires, etc... below the button. It may be worthwhile to take the laptop apart (if it still isn't under warranty; if it is, send it in to HP) and check out the connections from the power button to the motherboard.
/but isn't true quickstart pulls power from different location? So could both power switch and ribbon cable bad or replace all along with panel