Unable to install Snow Leopard
I am running OSX 10.5.8 on a 3-year old iMac (Intel Core 2 Duo). I recently tried to upgrade to OS Lion via OS Snow Leopard, only to find that it was impossible to purchase Snow Leopard from any Apple dealer (go figure).
I finally bought a new, unused set of Snow Leopard disks from an independent dealer. The DVDs are the basic grey ones; the first is labeled "iMac - Mac OS X Install DVD", and "Mac OS version 10.6.3". My computer fulfills the system requirements.
Upon launching the install disk, I get the uncompromising error message "Mac OS X Snow Leopard cannot be installed on this computer".
I have tried suggestions mentioned in other threads, including zapping the PRAM and launching from disk; they make no difference.
Can anybody please supply an explanation or even better, a solution? Or is this just Apple trying to force me into buying a new computer?