Hi all, I've issued a pull request that should automatically build and install the Fortran kD-tree when yt is installed. In my tests it works fine: https://bitbucket.org/yt_analysis/yt/pull-request/254/adding-a-line-to-automatically-build-the -- Stephen Skory s at skory.us http://stephenskory.com/ 510.621.3687 (google voice)