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deleting locked files in 144
emptying 22
troubleshooting. See also diagnostic
techniques; error messages
Apple System Profiler and 126–127
application program malfunctions 36,
138–145
audio CDs don’t play correctly 152
blinking icons in menu bar 163, 164
blinking question mark 132, 177, 178
“bomb” message on screen 125,
140–142, 153
cable connections 14
CD-ROM disc/drive problems
146–153
clock keeps time inaccurately 162
computer freezes 134–135, 137,
140, 153
computer makes unusual sounds
130–132, 164
computer won’t restart 137
deleting files 144
desktop looks different when you start
up 136, 148
displaying system information
126–127
documents, working with 143–144
equipment connections 134–135
file sharing problems 144, 165–168
flashing empty box appears at
startup 137
floppy disk/drive problems 133,
154–156, 205
font files, damaged 163
hard disk problems 136, 157,
171–174
icons appear different from usual 163
icons do not appear at startup 137
interference with radio and television
reception viii, 90, 202
ISO 9660– or High Sierra–format
files 151
keyboard problems 159–161
Macintosh Guide and 126
memory problems 138–142, 145, 153
microphone malfunctions 162
mouse problems 159
network usage problems 165–168
performance and speed decrease
157–159
Photo CD problems 153
pointer alternates between an arrow
and wristwatch 137
pointer doesn’t move 159
PRAM and NVRAM problems
131–132
printer problems 132, 164–165
rebuilding the desktop 137
restarting the computer 125, 137
right-angle bracket (>) on screen 162
“sad Macintosh” icon 134
screen is dark 130
SCSI device connections 132
shared disk problems 166, 168
starting up the computer 14,
130–137, 157
startup disk problems 133, 157, 171
system extension compatibility 135,
169–170
system software problems
132–134, 182
typing produces nothing on screen
160–161
a window has disappeared 145
turning off
AppleTalk 62, 159, 164
the computer
to attach or remove devices 79, 81,
88, 91
to connect cables 14
general instructions for 30
to install an expansion card or
memory 97
for troubleshooting purposes 136,
147, 148
hard disk sleep 37
system extensions 131, 161, 169,
190–191
virtual memory 38
231
Index