Solving Problems
This section provides troubleshooting information for your computer. If you cannot solve your problem using the following guidelines, see “Using Support Tools” on page 55 or “Contacting Dell” on page 77.
WARNING: Only trained service personnel should remove the computer cover. See the Service Manual at support.dell.com/manuals for advanced service and troubleshooting instructions.
WARNING: Before working inside your computer, read the safety information that shipped with your computer. For additional safety best practice information, see the Regulatory Compliance Homepage at www.dell.com/regulatory_compliance.
Touch Screen Problems
Some or all multi-touch features are not working —
•Certain touch screen features may be disabled. To enable the touch screen features, click Start 
→ Control Panel→ Hardware and Sound→ Pen and Input
Devices.
•The
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