Hey guys,
I have a very similar problem as you: my asus started working its camera with its driver "asus virtual camera" but recently started to have problems, first only at skype, but now it doesn't work in any program, as windows movie maker (I wanted to try it in a program not used to chat, like skype, facebook or similar). Once I downloaded Manycam, a program used as the camera driver, because when I opened skype I had to choose "manycam camera...", between that option and "asus virtual camera". If I hadn't have installed manycam, I couldn't choose any camera because I didn't have the option (it's like I hadn't any camera). With manycam opened, I could run the videocalls. But these days I can't, even using manycam. That was when I tried to run the camera with movie maker... but anyway. I've uninstalled and re-installed my asus virtual camera, skype, manycam... but I'm desperated!! I can't find "Faria" to try it, if only you have another link for it, because searching it on google I find links without relationship with the cam.
Another detail is that when I open or close my laptop, or just move a little bit its screen, it sounds like when I put on/off an usb, maybe is a hardware problem, about the camera connection with the laptop, but then I can't understand why yesterday I reinstalled all and it worked, and now don't! I'm sorry I'm desperated.