Have never seen it. Are you all using Windows? I have a Mac and usually do internet on the Mac operating system, Snow Leopard, but have dual processor so I have Windows XP installed also. Since that is a MicroSoft product, I run a program called Security Essentials or "something" Essentials. Never have seen it on the Windows side either. My Pfaff embroidery machine won't talk with a Mac, so I have to have Windows in order to download designs. I know, way off subject, but no I have not seen this pop up.