How do I activate auto save and versions?

What application/s? What MBP do you have? What OS are you running?

Mountain Lion. Since ML, Auto Save and Version does not work with new user accounts I am creating. The accounts I moved from Lion MBA to Mountain Lion on my RMBP 15 have it enabled.

So: ML still has the feature, but you may not access it by Preferences. It does - only on new accounts - even not work with TextEdit. With the Accout I moved from Lion to Mountain Lion no such problems.