Dell PP22X, DT549 owner manual 121

Models: PP22X DT549

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Network Problems

121

Mobile Broadband

 

(Wireless Wide Area Network [WWAN])

122

Power Problems

122

Printer Problems

124

Scanner Problems

124

Sound and Speaker Problems

125

No sound from integrated speakers

125

No sound from external speakers

125

No sound from headphones

126

Touch Pad or Mouse Problems

126

Video and Display Problems

127

If the display is blank

127

If the display is difficult to read

128

If only part of the display is readable

129

Drivers

129

What is a Driver?

129

Identifying Drivers

130

Reinstalling Drivers and Utilities

130

Troubleshooting Software and Hardware Problems

 

in the Windows Vista™ Operating System

132

Restoring Your Operating System

133

Using Windows Vista System Restore

134

Contents

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Dell PP22X, DT549 owner manual 121