why does my wordpress sidebar list categories by ID# instead of by name when the following code is used:

wp_list_cats('sort_column=name&optioncount=1&hierarchical=1');

shouldn't 'sort_column=name' (rather than ID) list the categories alphabetically?

From what I've read, the wordpress default is by ID#. But since XPress is coded with 'name,' it suggests that phppp changed the default and wanted to list categories alphabetically by name instead of ID#. Frankly, this is the only thing that makes sense.

But, it doesn't work on any of my sites. All my sites still list categories by ID#. What am I missing here?