S syrious Guest Feb 3, 2009 #1 ---on my PC screen. What is the significance of them? Should i just eliminate them, or are they useful? When I click on either a window pops on that says "Windows cannot open this file unless it knows the source"
---on my PC screen. What is the significance of them? Should i just eliminate them, or are they useful? When I click on either a window pops on that says "Windows cannot open this file unless it knows the source"
