Today I reinstalled Mac OSX because I just wanted a fresh restart now that I know what I'm doing a bit more than before. I do have some questions however. The Mac OSX installation disc was a bit scratched up. Could this have effected the installation? Could something not have been installed correctly due to the installation? During the Mac OSX installation while the disc was in the drive and installing I touched the touchpad a few times to keep the monitor from shutting off. This is similar to my above question, but could touching the touchpad while the disc was in the drive and installing have caused something not to be installed correctly? While I don't think I have symptoms of something not being installed correctly I do worry that a scratched disc or touching the touchpad during installation could have caused an improper installation, and maybe make some things not work correctly like the firewall or something else. Last but definitely not least I have a security question. Tomorrow I'm going to be doing something on the computer for my Mother which will require her to use her social security number. She's even more terrified of computers than I am. How can I ABSOLUTELY make sure than when entering her social security number tomorrow that no identity theft will occur? The website we'll be doing this on is secure, but as far as my computer itself how can I know all is safe for sure? In other words, provided you love your mother, what would you do to make sure all is well on your computer before entering your own mother's personal information?