nooshu

Ok fixed it. Very random error.

In my functions.php i had the following code

$p = array(
	'before_widget'  =>   "\n\t\t\t" . '<li id="%1$s" class="widget %2$s"><div class="inner">',
	'after_widget'   =>   "\n\t\t\t</div></li>\n",
	'before_title'   =>   "\n\t\t\t\t". '<h3 class="widgettitle"><span>',
	'after_title'    =>   "</span></h3>\n"
);
if (function_exists('register_sidebars')){
	register_sidebars(1, $p);
}

Note the $p, that must have been overwriting something in WordPress as once i’d changed that to $args everything worked perfectly.

Phew!