The latest update seems to be working much better for me. When Vue 6 final first came out, I had the same problem you describe. Scenes that loaded just fine in 5 couldn't even load in 6. Now I get much better performance out of 6, and I'm sure it has something to do with the fact that I'm on XP64 and running Vue x64. I have 6 gig RAM in this machine and Vue can use more of it without crashing (well, it can use about 2 gb instead of the 1.3 vue 5 could use before crashing).