Any idea why pretty_popup is finding and using album art (bottom right) and Foobear skin is not displaying them (not all though. maybe half)
http://www.347media.com/screen-captures/pretty_popup.jpg

I had this happen when the album art was labeled "Album Title.jpg" instead of "folder.jpg" or whatever foobear is looking for.

Your might not have the right sources for it. You can change them easily. Right click on the album art area then when the new pop up comes up press the sources tab. A very simple one you can use that works is this, $replace(%path%,%filename_ext%,)*.jpg... if your album art pictures are in separate folders with their correct album then this will find and load all jpgs in each folder.