On the phone Apple tells me they can upgrade me from 10.6.8 to El Cap for free. I spent 4 hours at the local Apple store on one occasion and 5 hours the second time. No one at the Genius Bar could get the job done. So I phone Apple again and speak to a senior advisor. He is confident it will work and proposes to do it over the internet. While El Cap is being downloaded he asks if I can call again once the D/L is complete. That way he doesn't have to stay on the line 30 minutes. I agree. When I call back later another SA tells me that that my Intel Core 2 Duo cannot be upgraded beyond Lion. Has anyone successfully installed an OSX beyond Lion on a 2006 MBP?