So... I updated to the latest version of avast! a few minutes ago. Everything seems fine. Shortly after installation, an avast! pop up stating that Web Rep is off for Chrome (or something along those lines) came up and then went away. Went to settings to check on this, and when I clicked on the "Security plugin not installed" install/uninstall button for Chrome, nothing happened. Can't be clicked. The same buttons work for IE and Firefox; install/uninstall buttons for "Ad Blocker not installed" work for all browsers. What gives here?