Mountain Lion will not install on Core 2 Duo iMac
I have just upgraded my iMac 20" to a Core 2 Duo and everything is running fine.
I have then tried to upgrade from 10.6.8 to the new Mountain Lion, however I am getting a message that my machine is not compatible with Mountain Lion.
I really need to upgrade as I have to run the latest XCode environment.
The generalities of the Apple site does not explain exactly why the machine is not suitable. I did think it was a Core Duo vs Core 2 Duo thing.
Would appreciate any thoughts on how I can get this machine upgraded.
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