TEST THE KEYBOARD — Connect a properly working keyboard to the computer, and try using the keyboard.
E N S U R E T H A T T H E USB P O R T S A R E E N A B L E D I N T H E S YS T E M S E T U P P R O G R A M — See "System
Setup" on page 111)
R U N T H E H A R D W A R E TR O U B L E S H O O T E R — See "Resolving Software and Hardware Incompatibilities" on page 55.
Lockups and Software Problems
CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide.
The computer does not start up
C H E C K T H E D I A G N O S T I C L I G H T S — See "Diagnostic Lights" on page 49.
E N S U R E T H A T T H E P O W E R C A B L E I S F I R M L Y C O N N E C T E D T O T H E C O M P U T E R A N D T O T H E E L E C T R I C A L O U T L E T
The computer stops responding
NOTICE: You might lose data if you are unable to perform an operating system shutdown.
TU R N T H E C O M P U T E R O F F — If you are unable to get a response by pressing a key on your keyboard or moving your mouse, press and hold the power button for at least 8 to 10 seconds until the computer turns off. Then restart your computer.
A program stops responding
E N D T H E P R O G R A M —
1 Press <Ctrl><Shift><Esc> simultaneously.
2 Click Applications.
3 Click the program that is no longer responding.
4 Click End Task.
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