Not sure which version of QuickCam software you are running?
TOP • Open your start menu • Open My Computer • Open your “C:” drive Folder • Open Program Files Folder • Open Logitech Folder • Open QuickCam Folder • Right click on QuickCam.exe file • Click on properties in pull down menu • Click on Version tab Any thing numbered equal to or higher than version 10.0.0 is compatible.