I just went to the iTunes store and deauthorized the 5 computers authorized to use/listen to my purchased music. I started clicking random purchased music (from iTunes, most of which is DRM'd) thinking that iTunes would prompt me to authorize my machine- it didn't. I closed iTunes and tried again, I was still able to play all of the randomly selected purchased tunes. I went to my daughter's machine and was able to play purchased tunes. Is Apple no longer checking for authorized? Has anyone else deauthorized their machine since Apple went "DRM free"?