Sound and Speaker Problems

78

No sound from integrated speakers

78

No sound from external speakers

78

No sound from headphones

79

Touch Pad or Mouse Problems

79

Video and Display Problems

79

If the display is blank

79

If the display is difficult to read

80

If only part of the display is readable

80

Drivers

81

What Is a Driver?

81

Identifying Drivers

81

Reinstalling Drivers and Utilities

81

Resolving Software and Hardware Incompatibilities

83

Restoring Your Operating System

84

Using Microsoft Windows XP System Restore

84

Using Dell PC Restore by Symantec

85

Using the Operating System CD

87

11 Adding and Replacing Parts

89

Before You Begin

89

Recommended Tools

89

Turning Off Your Computer

89

Before Working Inside Your Computer

90

Optical Drive

91

Hard Drive

92

Returning a Hard Drive to Dell

94

Memory

94

Modem

96

Hinge Cover

98

Keyboard

99

Wireless Mini-Card

101

Contents

7

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Dell PP23LA owner manual If only part of the display is readable, Resolving Software and Hardware Incompatibilities, 101