This bug is really a pain in the neck. It's years that it disturbs my Matlab/Octave programming, and I am considering to switch back to KDE.
I can add one bit of information (valid on recent ubuntu releases, up to 7.04). 1) After a fresh GNU-Linux installation, Nautilus correctly opened xxx.m files with gedit, without complaining. After I played around with "Open With" feature (I wanted to make Scite the default application for such files) Nautilus started showing that useless warning message. 2) In other cases it seemed me that the warning message appeared always, except when the default application was gedit. I mean, if, after situation (1) above I select gedit as the default application, it works with no warnings I think that these behaviours should be verified and hopefully they'll say something to whom knows how nautilus writes those .xml files or mime databases. I think that the bug may not be in the way nautilus behaves afetr reading them. But rather it could be in the way it writes them when some "Open with" option is changed. And then if they are incorrectly written, Nautilus gets confused (foe example, it does no more understand that a Matlab/Octave content can stay in a *.m file as well as an Objective-C content) and fails to interpret them. Otherwise, why should the problem vanish after editing those .xml files and/or updating mime databases? (As reported by others) Thank to whom will permamently solve this. Lurix -- Nautilus gives incorrect warning when opening files of .m extension https://bugs.launchpad.net/bugs/112228 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs