09-02-2011, 05:51 PM
This worked for me when the same thing happened in Snow Leopard on my MBP:
Set it to export in vCard 2.1 format without photos, then quit the app.
Open it again and set it to export in vCard 3.0 with photos.
Set it to export in vCard 2.1 format without photos, then quit the app.
Open it again and set it to export in vCard 3.0 with photos.