Evening, So this evening I wanted to install ios5 GM onto my iPad but didnt go as planned. So I wanted to downgrade back down to iTunes 10.4. I deleted 10.5 and tried to install 10.4 but I get the error: 'The file "iTunes Library.itl" cannot be read because it was created by a newer version of iTunes. Would you like to download iTunes now?' And no matter if I download 10.4 again, I still get this error message. Now what? Any help please!