I have a MBP 13 M2010 model. I replaced the harddrive and when i went to reinstall OSX off of the restore cd it failed due to a huge scratch on the disc. I purchased 10.6 from the store for $30 and went to install it but it says "computer must be restarted" over and over when i try to run the disc. I got my hands on 10.6.3 and 10.6.7 files and when i try to load them i get the no symbol. What do i do? am i stuck running windows on this machine? ugh..