On my Confluence 5.0 I can´t toggle to have the Documentation theme: he symbol on the top doesn´t appear

[Sergio Storch]

Why the symbol where I used to toggle to have the Page Tree on the left-hand side appear?

[Michael Knight]

You may be running into the following bug which doesn't show this toggle when viewing 'non-content' pages, such as the attachments page: https://jira.atlassian.com/browse/CONF-28203

[JoeyA]

Hi Sergio - is it possible that you are not in the Documentation theme but the new Confluence 5.0 theme? Try hitting the open square bracket "[" button - it is the shortcut to expand/collapse the left hand menu on this theme