Hi Michael, I have now committed a series of fixes for the 'bieri_gui' branch. All menu entries are now debugged and totally functional (on both GNU/Linux and MS Windows, Mac OS X is untested). One key problem was opening, closing, and then reopening windows - this would kill the program. It is now handled correctly. The relax manual will now open up with 'F1' into a local application. All the windows, apart from the main one, are re-sizable and the GUI elements smoothly expand or contract to match. This makes the relax controller window much more useful as you can now make it bigger or even full screen, and it looks ok in Windows. I have also added one new feature which makes the GUI incredibly more powerful. I have now used wxPython to re-implement the relax prompt within the GUI. This is located in 'View->relax prompt'. This is only for power users, but it enables all of relax's features to be available in the GUI. For example, all of relax's pre-written scripts can be run from here. Anyway, I've now performed a dummy merge of the 'bieri_gui' branch back into the main line. There are a few problems (4 conflicts) but these were quite easy to resolve. I'm not sure how these conflicts arose though. It looks like some parts of the main line were not merged into the 'bieri_gui' branch - probably due to improper resolution of conflicts after an 'svnmerge.py merge' command. Some look like there were changes applied in both the main line and the branch separately. Anyway, it is easy to fix. So I can merge the GUI branch into the main line at any time. The branch seems complete and bug free enough to be merged back and released as relax 1.3.6. I will be on holidays for the start of next week, but maybe 1.3.6 with GUI could be out very soon. Is there anything left to do in the branch? Is this ready to be merged? I would suggest reapplying https://mail.gna.org/public/relax-commits/2010-09/msg00048.html to the 1.3 line once the branch is merged. Regards, Edward