Can no longer save email messages to my files
Before upgrading to Mavericks, I could open an email message from a client, click Save As, select a folder, then save the message as a text file to the appropriate folder on my hard drive. It seems I can no longer do that. I always get a Mail error message saying "Names longer than 31 characters are not supported on the destination volume."(Even when the name is already shorter than that, I go through the exercise of shortening it.) After doing that, I click Save. Then I get an error saying "Error: Could not save to path...." which, incidentally, goes haywire part of the way through and takes it down a path that is a completely wrong folder for another client. Regardless, it doesn't save.
I've tried completely renaming the file. I've tried everything I can think of.
This used to be SO SIMPLE: Just click Save As, select the appropriate folder, then click Save.
In Mavericks, do I need to convert this email message into a Word document in order to save it to a folder?