Hi Michael, I'm testing the GUI code with the OMP data (https://gna.org/support/download.php?file_id=7601). I've loaded all the data into the model-free tab, but when clicking on 'Execute relax', I receive the error: Traceback (most recent call last): File "/media/disk/relax/branches/bieri_gui/gui_bieri/relax_gui.py", line 2852, in exec_model_free which_model = whichmodel() TypeError: whichmodel() takes exactly 1 argument (0 given) This is probably due to the removed_tab_patch file not being applied as it needed to be broken up. It is the local_tm problem. This is in comment 19 of the task (https://gna.org/task/?6847#comment19) as the file https://gna.org/support/download.php?file_id=7722. It would be useful if you made a patch with the remaining part of this patch (or 2 if there are still 2 concepts still to apply) for the newest revision of the branch (r10266). Cheers, Edward