Mac doesn't recognize HD.
At the beginning the mac started to slow down so I decided to reinstall the OS, when I did it kept running slow so I did it again. when it started up a question mark appeared on the screen, I looked on the internet and said the HD was broken so I changed it for another one that I had at home. when I turn on the mac the question mark appeared again. so I inserted the installation dvd, the dvd runs but when I have to chose the destination HD theres no HD to chose from.
now, is the HD that I installed broken? or could it be another problem.
Is this a good question?