Cory/ Scott,
I suspect this is the “showstopper” bug that I found last January. After we looked further, we decided it was only my MacBook, and I probably needed to update drivers, thus didn’t stop the 5.8 release. As I don’t have control over the drivers, we decided I couldn’t present the volume rendering part of the tutorial. I thought I wrote it up, but I didn’t. Not sure if I should, since it is probably not ParaView…