Hmm. Thank you for your time Para-noid and for those two links to store for the future. I changed my home page to something else, but I'm still concerned. I do not yet grok exactly why that is happening. Avast system tray icon hover says everything is good, but does that pop-up mean that something is infected or hijacked in the google search server, or in my google chrome browser, or something else? Do I need to stop using google search? Is it unsafe to visit mail.google.com? Should I be uninstalling & reinstalling chrome, or dump it and move on to another browser....?