^^Did you try uninstalling the drivers and unplugging your webcam? Go here and watch the step by step proceudre on how to install the webcam http://www.logitech.com/index.cfm/webcam_communications/video_software_services/&cl=us,en?WT.ac=ps|3293 If that procedure doesnt work for you Try inserting your usb web cam then wait for a pop up message on the right corner of your menu bar before clicking it, make sure you have the driver on your cd/dvd rom. A box will appear saying a new hardware found. Just read and and follw instructions step by step. Goodluck