Ive acquired a black 13' macbook built i think in 2007. not sure if theres water damage could be possible but not sure. it sounds as if it is going to turn on white light on the bottom right hand corner comes on flickers for a bit screen flicks cpu fan spins but then shuts off. im new to mac's but not new to pc. i have alot of knowledge and am thinking this could be a hard drive error from what ive read. if anyone can help i would greatly appreciate your help