I love the cleaner higher quality rendering created with the 32-bit mode, but for many of the projects I have, Vegas 8 simply "disappears" or freezes during rendering. It seems to relate to something I remember in a much older version, ie, certain larger jpg images, complex operations in general will somewhat predictably cause it to crash and burn. It's kind of frustrating, because I don't mind the extra render time (sometimes) to acheive the clean precise look I'm getting ... but the render will seem to fail in the middle of a 2 hour render. What a hassle.