Consider the following scenario:

• You are running a Windows Vista-based computer.
• The computer has a universal serial bus (USB) keyboard connected to it.
• You resume the computer from sleep or from hibernation.

In this scenario, the LED lights that represent the NUM LOCK key, the CAPS LOCK key, and the SCROLL LOCK key on the USB keyboard do not resume their previous status. These lights remain turned off regardless of the status of the NUM LOCK key, the CAPS LOCK key, and the SCROLL LOCK key.