Hey guys, I just noticed that not all of my songs show up in cover flow when i flip the iPhone on the side, even though they have cover art in them. They simply don't show up at all. Is there any criteria that has to be met so songs show up in the cover flow mode or is this a bug? After I play one of the songs that is not displayed it briefly shows in coverflow until i turn the phone on and off. Then it disappears again. Any ideas?