Hey, so my laptop was in a flood (while on) about a month ago so I ordered some parts to fix it up, motherboard, hard drive, dc in board, and some screws I had lost. I replaced everything, I turned it on, got the dong, waited a couple of seconds then a folder with a question mark in it popped up, I know this means the computer isn't recognizing the heard drive. However I know the drive is good because I hooked it up to another computer and set up snow leopard on it. I have tried everything I can think of. I have tried holding option while booting but a mouse comes up and then there are no drives to select. I have poured a nice amount of money into this and really would like it to work, so any suggestions would be appreciated. I have also tried flashing the PRAM.