I have just bought an i phone 5 and when i plug it into my macbook it asks to download the latest version of i tunes but my macbook will not allow this. Not sure what i need to do?
You need to upgrade to OS 10.6 Snow leopard to sync with an iPhone.
iTunes 10.6.3 is the last version of iTunes to support Mac computers with Mac OS X 10.5.8 or PowerPC processors.
iTunes 10.6.3 download:
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