Version 4.7 doesn't work in Lisa nor Maya. Please add version 4.9-2 or later. I found working plugins for Maya at (32 bit) http://se.archive.ubuntu.com/ubuntu/pool/universe/d/djview4/djview-plugin_4.9-2_i386.deb and (64 bit) http://se.archive.ubuntu.com/ubuntu/pool/universe/d/djview4/djview-plugin_4.9-2_amd64.deb These new plugins would get the score 5.