Folks, Brad checked in a change on November 20 to Insight/Utilities/zlib/CMakeLists.txt that changed the name of the library to libvtkzlib.a. The makefiles for insight tests still reference -lzlib. The same holds for png. The CMakeLists.txt files in Code/IO and Testing/Code/IO needed changes to use vtkzlib and vtkpng. I'll check them in once I rebuild. Bill