Lockups And Software Problems; The Computer Does Not Start Up; The Computer Stops Responding; A Program Stops Responding - Dell OptiPlex GX520 User Manual

Check for software and hardware conflicts
Lockups and Software Problems
CAUTION: Before you begin any of the procedures in this section, follow the safety instructions located in the Product Information Guide.
NOTE: If you installed a unique image on your computer or if you had to reinstall your operating system, run the DSS utility. DSS is available on your
Drivers and Utilities CD and at support.dell.com.
NOTE: You must use Microsoft

The computer does not start up

Check the Diagnostic Lights
Ensure that the power cable is firmly connected to the computer and to the electrical outlet

The computer stops responding

NOTICE: You might lose data if you are unable to perform an operating system shutdown.
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.

A program stops responding

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.

A program crashes repeatedly

NOTE: Software usually includes installation instructions in its documentation or on a floppy disk or CD.
Check the software documentation —

A solid blue screen appears

Ensure that the original installed version of Windows XP is installed on your computer
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.
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Windows XP Service Pack 1 or later when you reinstall Windows XP.
If necessary, uninstall and then reinstall the program.