I've just upgraded from VW 9.5 to 10.0.1; in working through the tutorials, I encountered a problem. When I tried to use the 'Shell solid' tool as indicated on the solid addition, VW doesn't highlight the top surface, nor does it execute the shelling operation. [i'm using a Powerbook G4/800, 1 Gb RAM, 60 Gb hard drive. 22" Monitor]. I've looked at the other postings on shell solids, and this hasn't come up. Am I doing something wrong?