This is a matter I've just lived with and not bothered with,but...A couple of years ago or so, I noticed that the notification balloons of my Task bar were no longer appearing.They still appear in the other user account on our computer....When I right-click an icon I still get the menus and everyone functions fine.But when I hear the "ping" from, let's say Windows Defender or Spybot S&D, no balloon is visible and I can't read or respond to it....I use Ad-Aware,WinPatrol and Avast Anti-virus also and none say anything about any tampering...Any thoughts?