Because the u2u alert system is so subtle I decided to make a new option for den members. If you edit your profile ( http://den.spicylemons.com/viewthread.php?tid=945#settings )
you will notice that there is a new option called 'U2U Alert'. Here you can set a pop up alert to occur on new U2U's. It can be set to be off, on
only the index, or on every page. The default is set to every page for current members to help increase awareness of the system. But you can go and
disable it inside the your profile settings.