To know if Caps Lock is on, press the Caps Lock key and look at the on-screen notification.

NOTE: You need to have Logitech SetPoint software installed in order to receive on-screen notifications. If you don't have it installed, you can download SetPoint.

• Caps Lock On. When you press the Caps Lock key and see the following "Caps Lock On" message, unless you press and hold the Shift key, all of the letters you type will appear in uppercase.

  

• Caps Lock Off. When you press the Caps Lock key and see the following "Caps Lock Off" message, unless you press and hold the Shift key, all of the letters you type will appear in lowercase.