It's a bit obvious but editing individual contacts is better than assigning form images. I have also found stock .jpgs taken with the N900 are much better than imported .jpgs dragged and dropped into it's mass memory or memory card from elsewhere. Even an N95's pictures dragged and dropped via a PC to my N900 seem grainy when assigned to a contact. I suppose there is a work around using photo shop or similar but my advice would be take a piccy with the N900 of what ever you want to use as a contact picture.