Hello, I had an old iMac 7.1 (2007) at my work and I wanted to reboot it after a couple of years and I want to give it to my sun, but there are some problems. At First: When I reboot it it gives me a screen with a folder and a question mark in it. But then I tried to enter recovery mode but this didn't work. After that I tried to reboot it holding the 'option'-button but then it asked for a firmware password, which I can't remember. Now I don't know what to do... Is there anyone who knows a solution for this problem? Thank you Very much!!