User`s guide

Network Problems
Fill out the Diagnostics Checklist as you complete these checks.
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Power Problems
Fill out the Diagnostics Checklist as you complete these checks.
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1. Simultaneously press <Ctrl><Esc> to display the Start menu.
2. Type u, press the keyboard arrow keys to highlight Shut down or Turn Off, and then press <Enter>.
3. After the computer turns off, reconnect the mouse cable as shown on the in the Quick Reference Guide for your computer.
4. Start the computer.
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Testthemouse— Connect a properly working mouse to the computer, and try using the mouse. If the new mouse works, the original
mouse is faulty.
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Checkthemousesettings— 
1. Click the Start button, click Control Panel, and then click Printers and Other Hardware.
2. Click Mouse.
3. Try adjusting the settings.
If you are using a PS/2 mouse
1. Enter system setup and ensure that the Mouse Port option is set to On.
2. Exit system setup and restart the computer.
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Reinstall the mouse driver
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Run the Dell Diagnostics
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Check for software and hardware conflicts
CAUTION: Before you begin any of the procedures in this section, follow the safety instructions located in the Product Information Guide.
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Checkthenetworkcableconnector— Ensure that the network cable is firmly inserted into both the network connector on the back of the
computer and the network jack.
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Checkthenetworklightsonthefrontorbackofthecomputerdependingonsystemchassistype.— No connection speed light indicates
that no network communication exists. Replace the network cable.
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Restart the computer and log on to the network again
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Checkyournetworksettings— Contact your network administrator or the person who set up your network to verify that your network
settings are correct and that the network is functioning.
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Check for software and hardware conflicts
CAUTION: Before you begin any of the procedures in this section, follow the safety instructions located in the Product Information Guide.
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Ifthepowerlightisgreenandthecomputerisnotresponding— See "Diagnostic Lights."
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Ifthepowerlightisblinkinggreen— The computer is in standby mode. Press a key on the keyboard or move the mouse to resume
normal operation.
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