Paul

Sorry, small change I missed

wp_register_script( 'farbtastic-instance', get_template_directory_uri() . '/inc/farbtastic-instance.js',array( 'farbtastic', 'jquery' ));
wp_enqueue_script( 'farbtastic-instance' );

Needs to have the array( ‘farbtastic’, ‘jquery’ ) when the script is registered

hi, I had the same problem.

My jquery function call for farbtastic was in the body of the document.
In WP version 3.4 it need to be loaded in the head.

To do this, I made a JavaScript file of my function call and copied it my theme options folder, I called it farbtastic-instance.js

this file contained the following, but your will most likely be diffirent

jQuery(document).ready(function() {
    jQuery('#demo').hide();
    var f = jQuery.farbtastic('#picker');
    var p = jQuery('#picker').css('opacity', 0.1);
    var selected;
    jQuery('.colorwell')
.
.
.

Then, at the top of you theme-options.php page, insert:

wp_register_script( 'farbtastic-instance', get_template_directory_uri() . '/inc/farbtastic-instance.js');
wp_enqueue_script( 'farbtastic-instance' );