1 Reply Latest reply: Jul 30, 2012 1:37 PM by BGreg
coastaldahling Level 1 Level 1 (0 points)

I want to upgrade to Mountain Lion. I have 10.5.8 OS X now. The Software Update says there are no updates.But I need to update to the next level in order to be able to download Mountain Lion.

So I go to Apple Support - they ask for my serial number - i type it in - it says "invalid".


So now what? I'm stuck and Apple Support won't talk to me without the serial number.