38 Solving Problems
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
The computer stops responding
NOTICE: You might lose data if you are unable to perform an operating system shutdown.
A program stops responding
TEST THE KEYBOARD — Connect a properly working keyboard to the computer, and try using the keyboard.
ENSURE THAT THE USB PORTS ARE ENABLED IN THE SYSTEM SETUP PROGRAM — See "System
Setup" on page 111)
RUN THE HARDWARE TROUBLESHOOTER — See "Resolving Software and Hardware Incompatibilities"
on page 55.
CHECK THE DIAGNOSTIC LIGHTS — See "Diagnostic Lights" on page 49.
ENSURE THAT THE POWER CABLE IS FIRMLY CONNECTED TO THE COMPUTER AND TO THE ELECTRICAL
OUTLET
TURN THE COMPUTER OFF — 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.
END THE PROGRAM —
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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