If you can't activate Livcam on the device you mentioned, then it means the utility is not supported on the operating system you used or the drivers are not installed properly. To overcome this issue, I recommend identifying your device exact model then browse to the support website to download the correct drivers required for installation.
Asus Support page: http://support.asus.com/Download/Options.aspx?SLanguage=en&type=1
After you find the device, download the correct drivers and utility and install them. Once the process finishes, you will have the possibility to use the Livcam.
