The monitor works great and so does the webcam/mics. The problem is that there is some sort of mark/dirt on the webcam image that I cannot get rid. Tried cleaning the front and lens and that hasn't helped and from the image it does look like the problem is close to the actual webcam chip itself, i.e see attached for the view of a uniform white source:
It looks relatively simple to swap out the board with the webcam and microphone on it. So would it be possible/likely HP could send me one out? That would be better than having to send the whole monitor back for someone to fix it.