I also have 4G RAM and using XP. I know it is redundant,but i was running Vista no to long ago.The only time i get a crash is when i am repeatedly playing with materials that are more than 6-7 layers deep. and it crashes hard. Basically just shuts off Vue like that. But on the subject. EVERYONE gets Vue to crash at some point.It is just one of those happy little quirks that makes Vue, Vue:D

"Many are willing to suffer for their art. Few are willing to learn to draw."