so my friend's graphics card appears to be shot, broken, out of commission. but when you hit the restart button, you can hear the start up sound and when the computer is "on" you can hear the volume go up and down. so it would appear that her hard drive is still in tact. her apple care is out and she doesn't want to pay the 900 dollars it would take to fix her graphics card. but she still wants to get all her info off of her computer, so i proposed to turn her computer into a target disk. but it doesn't appear to be working, her hard drive doesn't show up on my computer. the cable is fine, because it works with my external hard drive. so i'm stumped as to what to do, or if the broken graphics card means that we can't use target disk. any thoughts?