Thanks brianb421! That seems to have worked well. Thanks also to tzyganu for posting the code.
Compliments of tzyganu below is the fix.
Add these two lines of code to your \app\code\core\Mage\Payment\Model\Method\Checkmo.php file directly below “protected $_code = ‘checkmo’;”
protected $_canUseCheckout = false;
protected $_canUseForMultishipping = false;
I’m using 126.96.36.199