Hi Faraz,Flickering tracking is very rarely a hardware problem, in most cases it is caused by external factors like lighting or glasses. Do you only get this problem when using the infant add-on? And only when it is attached to one of the 1750s but not the other? In ClearView there is a feature called Debug Film which can be created from the Help ...

I've noticed that our 1750 eye tracker (with infant add-on) is not tracking in a stable manner. The track status indicates flickering tracking, thus making calibration impossible. Are there specific hardware issues that may cause this problem? We have a 2nd identical tracker which does not demonstrate this problem.  Aside from the obvious ...