I suspect it is a feature of XP. I, too, have XP with SP2 and my machine also clicks at times when I am in Internet Explorer, for instance, and go from page to page etc. I do not really think that you have a problem there!
OnePlus 5 review
See the work of famous artists playing with toys
iPad Pro 10.5in (2017) review
Comment faire une capture d’écran sur un Mac ?