Brumfondl: Hmmm, maybe try running Malwarebytes AntiMalware on one of the machines and see it anything comes up? I get the feeling there is something running on both machines that is causing your issue and I kind of doubt it is anything good.
Thanks. I've installed MBM on both. Currently into the Heuristics scan - 5 objects found on the 8.1 (Ask toolbar stuff in my wife's profile) and 2 on mine (similar malware from a subtitle downloader and a Youtube Video downloader.