When I click the link 'verify if this user is accepting PMs' (when I'm in the PM composition box) I get the following error message in the pop-up window:

Fatal error: Call to undefined function: standardmsg() in /data/httpd1/htdocs/private.php(951) : eval()'d code on line 1
I'm sure this code used to work, although admittedly I've not tried it for a long time (I clicked on it by accident this time round).