upgraded itunes this morning, and i’ve found an actual DOWNgrade :

before itunes 4.2, if you clicked the “full screen” button (one of the 3 typical buttons at the top right of the application’s window), itunes went into mini-player mode. not standard for a Windows app, but very handy.

NOW, the “full screen” button has become a, well, “full screen” button (got it?), so that the only way (i guess) to switch to mini-player mode is to hit ctrl-m… which sucks.