I thought maybe something was corrupt or something in my original leopard set-up. (I just bought a new computer) and so I used the original installation discs and completely wiped the harddrive and did a fresh install of Leopard. Then restored my old files from my other laptop backup (which my other laptop works fine, and has snow leopard on it.) anyway, when I put the Snow Leopard disc in the new laptop, when I restart and hold C (or option and pick the disc) then it shows the Apple logo forever, and won't go to the disc. Just shows the Apple logo until I force shut down and restart. If I select the disc while logged on normally, when it gets to the point of restarting the computer to install itself, it does the same thing. What is wrong? My other laptop will open this on start-up with no problem. What is going on?