hi, i deleted the albumthumbs folder on my hero. now there are no photos anywhere and all my playlists appear empty even tho the music is still there! i backed up the albumthumbs folder and copied those files into the new albumthumbs folder that was created when i rebooted. however my picture albums and playlists are still empty (when i connect to my computer the folders where i had my photos are now empty)... please, please help! i don't know what i've done. thanks!