I hear this a lot from Bryce users when the subject of Vue comes up. As Sharen suggested, rendering at higher quality will usually get rid of the alleged grainy quality. However, I've noticed that this is attendant to certain types of atmosphere. You have a lot of control over your atmospheres in Vue. Some do indeed yield a high-grain sort of sky, which I find to be very attractive when artistically used. Others yield razor-sharp definition. Both progs have their pros and cons, but I think you'll notice than an increasing number of people are coming to feel that Vue is the preferable option. I've recently deleted Bryce 5 from my system. I love the control and potential that Vue provides, and there's no question that the GUI is superior to Bryce's, and thus easier to learn. As you probably know, importing Poser 4 (and soon, 5) scenes into Vue 4.1.2 is a breeze. Not so with Bryce.