Sorry Poll, but we are just creating a list of all the bugs in Vue 4.03 and crashing after a hugh render is a bug we all (or most) have. But it should not crash or freeze while rendering. It can be a problem with memory of your computer, because if you use really lots of volumetric lights (15 or so), hm... Another bug seems to be that, if you render over night, you absolutely have to unable your screen saver or any monitor or HD economy (how do you call this in english ?). Otherwise, we have seen that, Vue renders, but in the morning you cannot see any more your image or it is frozen and you cannot save it. Guitta