If you’re new to Joomla! and don’t want to worry about aliases, conflicting URL’s and blank pages I’ve got an interesting list for you: a list of 14 names you need to avoid using for your menu items.
Using them will lead to problems, because there will be a conflict with the names of the Joomla! folders. If all of this sounds like gibberish to you, just remember not to use one of the 14 following names for your menu item:
Of course, it’s still possible you run into problems with menu links. If that’s the case, feel free to comment or ask your question in the Joomla! forums.