Loading view data using XMLRPC
I think you forgot to send the the view_name that is a non-optinal argument. Check the code of the resource:

'view_name' =&gt; array(
  'name' =&gt; 'view_name',
  'type' =&gt; 'string',
  'description' =&gt; 'The name of the view to get.',
  'source' =&gt; array('path' =&gt; '0'),
  'optional' =&gt; FALSE,
),