DETAILS The Internal GUI editor can crash under unix on attempting to save into a write locked file or member. It does not crash under windows but waits until the file is available for write. This has been fixed so that it will return to the editor if it cannot write and a new "Save As..." button has been added so an alternative file can be specified for the save. EXAMPLE PROGRAM Change the file attributes on a file or procfile to read-only and attempt to edit and save using the internal gui editor. WORKAROUND Release the write lock held by some other process or change the file attributes to allow write access.