All of a sudden, after updating to Mountain Lion and iTunes 10, I'm now missing artwork for half of my songs in iTunes. Ideas? I feel like I play this artwork song and dance every damn time I do a clean install. I know for a fact that every single time I do a clean install I have to MANUALLY add the artwork back for literally close to 1000 albums, I don't have time for this garbage anymore, what's the deal here? I've also got 10 iPods, meaning I have to reload all music on all ten ipods when I get it sorted out.