Thanks for the info about jpeg's too! I'd heard others gripe about jpegs in the past, but reasons were never as clear as Carolly's explanation. And the rotating name thing is a good idea too. I do something similar, but simply put numbers behind the name ("object1.jpg", "object2.jpg", etc...) to follow the order of progression as I work on a piece. Often times, I find it easier to go back and rework from picture 3 or 4 than to keep tweeking picture 6.