tinyMCE - cannot create new profile

I have installed TinyMCE ad when trying to add a new profile I get an error :

warning: Invalid argument supplied for foreach() in /customers/darthspringbok.com/darthspringbok.com/httpd.www/test/includes/form.inc on line 1193.

Below is the text from the form.inc and line 1193 reads as follows "foreach ($form['#default_value'] as $key) { "

I cannot see anything wrong, is this a bad installation of TinyMCE or is there something that needs to be changed?

/**
* Helper function to determine the value for a checkboxes form element.
*
* @param $form
* The form element whose value is being populated.
* @param $edit
* The incoming POST data to populate the form element. If this is FALSE,
* the element's default value should be returned.
* @return
* The data that will appear in the $form_state['values'] collection
* for this element. Return nothing to use the default.
*/
function form_type_checkboxes_value($form, $edit = FALSE) {
if ($edit === FALSE) {
$value = array();
$form += array('#default_value' => array());
foreach ($form['#default_value'] as $key) {
$value[$key] = 1;
}
return $value;
}
elseif (!isset($edit)) {
return array();
}
}