I had a new AVH-P3300BT installed about 2 months ago. Everything was fine (more or less) until I loaded a bunch of new songs onto my iPhone4 yesterday (iOS 4.3.3, jailbroken) ... now the wrong album artwork shows up on my Pioneer screen - it seems completely random which .jpg file gets displayed. I haven't made any other significant changes to my phone or head unit recently.
When I play a song on my iPhone itself, the right image is displayed.
Any ideas?