So i got an iMac off of craigslist and didnt get it with the apple keyboard and mouse. It also came with windows 7 so i put in snow leopard deleted the windows 7 partition and then the installation froze so i manually turned it off. U tried to install again and it froze now i dont know what to do and ive tried every method to eject the dvd. Im thinking of opening it up you guys have any ideas?