keyboard and mouse (continued)
| Symptom | Problem | Solution | |
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| Mouse does not respond to | Mouse connector is not | Turn off your PC using the keyboard: | |
| movement or is too slow. | properly plugged into the | 1 Press the Ctrl and Esc keys on the keyboard at the same | |
| 
 | back of the PC. | time to display the Start menu. | |
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 | ||
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 | 2 Use the up or down arrow key to select Turn Off | |
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 | Computer, and then press the Enter key on the | |
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 | keyboard. | |
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 | 3 Use the up or down arrow key to select Turn Off, and | |
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 | then press the Enter key. | |
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 | After the shutdown is complete, plug the mouse connector | |
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 | into the back of your PC and turn on your PC. | |
| 
 | Program in use has stopped | Restart your PC by using the keyboard. If possible, save any | |
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 | responding to commands. | open files and close open applications before restarting. | |
| Mouse moves only vertically | Mouse roller ball is dirty. | Remove roller ball cover from bottom of mouse and clean | |
| or horizontally. | 
 | the ball with a damp,  | |
| 
 | Mouse is damaged. | Press the Help ? button on the keyboard to open the Help & | |
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 | 
 | Support Center, or refer to the Warranty & Support Guide | |
| 
 | 
 | to contact Support for replacement details. | |
| Mouse does not work after | Mouse is not connected | Try unplugging and then reconnecting the mouse cable to | |
| installation or is not | properly. | your PC. | |
| detected. | 
 | 
 | |
| Wireless mouse batteries | Replace the two AA alkaline batteries in the mouse; then set | ||
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 | |||
| 
 | are low or empty. | the ID channel by pressing the Connect button on the | |
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 | 
 | wireless receiver and then on the mouse. Refer to the | |
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 | 
 | documentation that came with your wireless set. | |
| Optical mouse does not | The optical sensor uses the | Place the mouse on a mousepad or white sheet of paper. | |
| track cursor well. | pattern of the surface to | 
 | |
| 
 | track the position of the | 
 | |
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 | cursor. Reflective surfaces, | 
 | |
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 | grooved surfaces, glass, or | 
 | |
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 | other  | 
 | |
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 | inhibit the ability of the | 
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 | sensor to track the cursor. | 
 | |
| 
 | Mouse sensor is dirty. | Wipe the light sensor lens on the bottom of the mouse with | |
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 | a  | |
| Mouse cursor moves | The wireless mouse moves | Adjust the mouse speed. See page 21. | |
| too fast. | the cursor more quickly than | 
 | |
| 
 | a standard mouse. | 
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memory
| Symptom | Problem | Solution | |
| 
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| Insufficient memory message | All memory in the PC is | Close all open programs, and then try desired task again. | |
| is displayed. | being used by open | Or | 
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| 
 | programs, and memory is | Restart your PC: | |
| 
 | needed for a desired task. | ||
| 
 | 1 | Click the Start button. | |
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 | ||
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 | 2 | Click Turn Off Computer. | 
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 | 3 | Select Restart. | 
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