Hi Troels, I was wondering what your plans are for your recently introduced system tests which currently fail? These are: F 1.06 s for Relax_disp.test_cpmg_synthetic_dx_map_points F 57.81 s for Relax_disp.test_dx_map_clustered_create_par_file The last test also takes far more time than it requires. I would like to soon release a new relax 3.3.2 release with all the recent bug fixes, but the test suite needs to be passing on all systems before I can do anything. There is also the 'with' statement in the system test problem which is fatal for Python 2.5 and which must be resolved (https://gna.org/bugs/?22801, http://thread.gmane.org/gmane.science.nmr.relax.scm/24011/focus=7229). The new release is required as the Mac OS X binary release is currently non-functional due to the bundled matplotlib package being broken (https://gna.org/bugs/?22821). Cheers, Edward