In short, the demo is less than it ought to be. it's kind of irresponsible on E-on's part, for that matter, but the demo is unstable, according to others. I don't know, though, as I never tried the demo, but this is what I've been told. Vue 4, with the latest patch, is VERY stable though, as far as I can tell, on all versions of Windows since 98. They really need to fix that demo, and I'm surprised that they haven't...