Random songs appearing in my iTunes music library after activating iTunes Match After enabling iTunes match, my library is cluttered with hundreds of tracks which I don't own / haven't downloaded. They have the "cloud" icon on them which makes me think they are either from iTunes Match - or maybe Genius. 

How can I get rid of these tracks from my library, they are driving me nuts.

P.S. using iTunes 11
Apple says I should turn off iTunes match everywhere and manually clean these tracks from my library and then turn it on again. I'll report back ...