Hi Jonathan, Try the 10/5/2002 version of vtk on Solaris: cvs -d :pserver:anonymous at public.kitware.com:/cvsroot/VTK -z3 -q co -D "10/5/2002" VTK If you are using Mesa, make sure you set OPENGL_INCLUDE_PATH and OPENGL_LIBRARY in the cmake cache file. Donna