Currently I have free versions of Avast & Avira installed. I suspect Avira is not working properly though it resists all my attempts to completely uninstall it. I've used Revo's uninstaller. Revo shows two icons; one for Avira & one for Avira Free Antivirus. In Vista's control panel Programs & Features it has the same two icons. The Control Panel page shows an icon for Avira Free Antivirus. In Program Files there is an Avira folder w/two folders; AntiVirDesktop & My Avira.
Whatever is on my laptop it's very persistent. Thanks in advance for any help with removal.