DURING INSTALLATION: Select a Destination Where would you like to install Mac OS X? The computer never found a drive to install it on to. It is a 17-inch iMac with a deleted Utilities Folder. Disk Utility is no longer on the computer. (It is a Utility Application) The iMac is running Tiger 10.4.11 - The DVDs can not be found. What do I do besides eventually calling a Mac help store nearby my house?