Ok, So.. I was having trouble with installing itunes. I had uninstalled it because it wouldnt update.. after about 3 1/2 hours total on the phone with Apple tech support, we came to the conclusion that something was probably wrong with Vista. During the phone call they had me do countless things. All of which, failed. During the call, after a restart my computer was unresponsive, the mute button would not change colors when i tapped it, and the button that dis/ables the mouse touch pad would not change color either. My computer was frozen. I then attempted to use safe mode (by pressing f8 repetedly at startup). I hadnt known what safe mode was before the call, but i told the woman on the phone that everytime my computer starts, it shows the safe mode screen + options. Also i have replaced the battery, and battery cord, but still my pc will not hold a charge. i have looked at all of the settings and brought it into a specialist. ( the people who sold me the battery and cord). The computer is not new anymore but has always been kept in good shape. Could it be the OS?