Lenovo ThinkCentre M72e Hardware Maintenance Manual - ThinkCentre M72e (3261, - Page 48
The mouse or pointing device does not work - driver
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• "The mouse or pointing device does not work" on page 44 • "The pointer on the screen does not move smoothly with the mouse" on page 44 • "The wireless keyboard does not work" on page 45 All or some keys on the keyboard do not work Symptom: All or some keys on the keyboard do not work. Actions: • Verify that the keyboard cable is securely connected to the correct connector on the computer. • If you are using an Enhanced Performance USB keyboard and one or more of the Rapid Access buttons are the only keys that are not working, these buttons might have been disabled or have not been assigned to a function. Use the help system in the Enhanced Performance Customization Keyboard program to help diagnose problems with the Rapid Access buttons. • On the Windows 7 operating system, do the following: 1. Click Start ➙ Control Panel. 2. Click Hardware and Sound. 3. Click Devices and Printers. 4. Double-click USB Enhanced Performance Keyboard. The USB Enhanced Performance Keyboard Customization program starts. If these actions do not correct the problem, have the computer and keyboard serviced. See "Additional information resources" on page 34 for details. The mouse or pointing device does not work Symptom: The mouse or pointing device does not work. Actions: • Verify that the mouse or pointing-device cable is securely attached to the correct connector on the computer. Depending on the type of mouse you have, the mouse cable will connect to either the mouse, serial, or USB connector. Some keyboards have integrated USB connectors that can be used for a USB mouse or pointing device. • Verify that the device drivers for the mouse or pointing device are installed correctly. • If you are using a USB keyboard or mouse, verify that the USB connectors are enabled in the BIOS settings. See "Enabling or disabling a device" on page 57. If these actions do not correct the problem, run the diagnostic programs (see "Lenovo Solution Center" on page 54 for instructions). If you need technical assistance, see "Additional information resources" on page 34. The pointer on the screen does not move smoothly with the mouse Symptom: The pointer on the screen does not move smoothly with the mouse. Action: Erratic movement of the mouse pointer is generally caused by a buildup of dirt, oils, and other contaminants on the ball inside the mouse. Clean the mouse. The fingerprint reader does not work Symptom: The fingerprint reader does not work. Action: The following could cause the fingerprint reader not to operate properly: • Not enrolling your fingerprint correctly. 44 ThinkCentre Hardware Maintenance Manual