troubleshooting
(continued)
computer
screen
55
display
51
hard
disk
drive
60
keyboard
53
password
52
sound
58
standby
or
hibernation
startup
U
Universal
Serial
Bus
(USB)
39
upgrading
device
63
V
vision
123
W
warranty
information
127,
133
service
type
134
Web
help
85
wireless
145
interoperability
LAN
20
WAN
Index
169