personally, I decided on "Caps Lock Indicator" since the S7 does not have Num Lock or Scroll Lock, no real point in going for the more functional "Keyboard LEDs". Caps Lock Indicator does everything needed for the S7 caps lock notification and it works really well. I have it set up to notify via on screen display upon toggle, but disappear after a couple on seconds and a permanently visible tray icon as a state indicator, sound off on state change so it's not annoying people around me.
Member RevoMaxx is quickly moving up the ranks of Acer Community. He joined us in September and is already making a difference. It's great to see new members like him make a difference only after a few months. Thanks RevoMaxx!