dashboard-widgets-order.php Conflict - Array ()


I found this plugin as the culprit of a conflict with the WPMU-Nelo theme and other themes - it does this -

on the admin Dashboard page, at the very top of the page, it's rendering "Array ( ) " - the Source code for the page is -

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" dir="ltr">
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />...

I installed it as instructed in the install.php file - what is making it conflict with Nelo and other themes?