I would have to guess that you are using the incorrect FILE format
IF it is in some sort of APPLE format it won't recognize it
Copy Pictures To The Hard-Drive
Insert either a CD or a USB device containing your pictures.
Touch the MY PICTURES soft-key to get an overview of the currently stored images.
Press one of the ADD PICTURES soft-keys, then select the type of media inserted.
Use the PAGE soft-keys to page through a list of pictures and press the picture you would like to import.
Confirm your selection by touching the YES soft-key. The imported picture is now available on the MANAGE MY PICTURES screen.
In order to display the imported picture on the radio screen, touch the desired picture soft-key.
Select the picture by pressing the PICTURE VIEW soft-key. A check mark indicates the currently used picture.
try using the JPEG format, read page 86 of your nav system manual
Loads of people have the same issue