Can someone please help me; Every time i install limewire my system runs slow and when i go to shutdown it takes ages and a message appears saying uipopuphidden and would i like to end the programme now click the end now box, does anyone know what this is and how can i stop this. Im using windows xp service pack 2, i also have antisypware and antivirus running but it doesnt seem to be picking up this uipopuphidden please help as it is slowing down my system.