I have iMac-snow. Since I got a "broken file" on the screen, I decided to reinstall 10.1 by using the original installation disk. When I try to select my HD as the distination, an error message "this disk is dimmed because this Mac OS X CD installs different languages" shows up and I cannot choose the destination HD. What does that mean? Am I using a wrong disk? What can I do to reinstall OS X? Please help!