My Mac died and I needed to reinstall. I tried to restore from my Time Machine backup, but that also crashes for me (no idea why). So I've reinstalled OS X 10.6 (Snow Leopard) and ran all the updates, so I'm on 10.6.8.
I want to get Mountain Lion back (which I'd previously bought from the Mac Store), but I can't run the App Store to get it: When I try to load it I get a message:
You have OS X 10.6.8. The application requires 10.7 or later.
What can I do?