Dear all, If you have been using the very recent relax version 1.3.6 (or the 1.3 main line or branches from the relax repository) you may have been affected by a recent bug in relax (found by Vitaly Vostrikov and detailed at https://gna.org/bugs/?17458). This would only be a problem if relax was used for model-free analysis. If you have used the dauvergne_protocol.py or full_analysis.py script for the analysis, there is a simple check to see whether your results have been influenced. Open the file 'prolate/init/results.bz2' and search for the 'spheroid_type' XML entry. If you see: <spheroid_type> 'oblate' </spheroid_type> in this file, then your results are not correct and you will need to re-run the prolate spheroid diffusion tensor global model. This entry should say 'prolate'. As this is a very recent bug, most results should hopefully not be affected. Sorry if this has caused any inconveniences. Sincerely, Edward