When I'm in finder or on my desktop I'm able to hover above an MP3 and it brings up the option to play it without opening itunes or anything. However when I'm in the documents folder in the stack at the bottom next to the dock and I hover above an MP3 it doesn't give me that option. You have to actually click it to open it in itunes or another program to listen. Is there a setting for this? Is it possible to have it just play there the same way as if it was on the desktop or in a finder folder?