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Chapter 4
!
0
Memory problem.
Computer virus.
.
!
0
Screen saver is enabled.
H
!
0
Keyboard is
disconnected.
%)*#
2!
!0* !2
Reboot computer.
Reinstall memory, make
sure that all memory
modules are installed in
correct sockets.
Use anti-virus programs to
detect and clean viruses.
%)*#
2!
!0* !2
Disable screen saver.
%)*#
2!
!0* !2
Reconnect keyboard.
Check keys again, if no
improvement replace
keyboard.
,5,
Trouble shooting
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