When I push the ON button on my Compaq I see the red Compaq logo against the black screen flash by and then a black screen with “Please select OS to start:” I choose the Microsoft Windows XP Home Edition and it takes me to the black screen with “We apologies….” . It instructs me to choose the option “Last known good config…” and in choosing that the Windows XP screen flashes by and then the red Compaq logo flashes by and it takes me right back to the “We apologies…. “ screen. Next step was to choose the option for Safe Mode and instead of running for a long period of time as others suggested it goes right back to the “We apologies….” screen. Any idea what to do now?