I thought the whole thing about Bryce Lightning was so you could render on two comps? Not that I managed to get it to work, but that's my lameness. Lunartick - no difference at all. I had Corel Bryce on my old pc, gave that to my daughter, and bought Daz Bryce. Exactly the same. Your gf is right - it's always nice to have your own copy of a program, rather than having to use someone else's:^) my 2 cents