I've had my mac for about a year after someone gave it to me. I think it's pretty old, I'd say about 5 years maybe. Its using snow leopard right now. I was on safari yesterday and once I opened my email the computer froze. Mouse and everything. So I held the power button down to turn it off and when I turned it back on there was a flashing folder with a ? on it. I looked this up on google but every thing I found told me to put a disk in the computer. I can't do this because I dont have the disk and the disk drive is broken anyway. Anyone know how to fix this?