Why won't Matlab save any new m. files?

I am running MATLAB R2012a on Windows 7. It recently has developed a problem where it can't save new files, or perform a "save as" on existing files. Every time I try, MATLAB freezes and I have to kill it using the task manager. I can edit and save files that already exist without a problem, and I can also create a file in the directory using fopen without a problem, so I know it isn't a permission issue. What can I do about this?

Answer 1

[dpb]

http://www.mathworks.com/matlabcentral/newsreader/view_thread/337227

Again I say, "ask TMW" directly on this one...

[Jeovane]

Damm. The link doesn't work anymore. And I have the same issue.

[dpb]

I dunno about why a symptom would have just developed in old code unless the OS was updated, perhaps.

A workaround would be to use copyfile first to make the new file or use another text editor to make changes and save as new file instead of the builtin ML editor.

I use the free version of Brief available at http://www.briefeditor.com/