Dell PRECISION 530 - Manual (Page 205)

Solving Problems 205
Operating System Compatibility
Ensure that the computer's operating environment is set up to
accommodate the application programs you use. Whenever you change the
operating environment parameters, you may also affect the successful
operation of the application programs. Sometimes, after modifying the
operating environment, you may need to reinstall a program that no longer
runs properly.
Multiple Microprocessor Compatibility
If dual microprocessors are installed, verify that all application programs will
operate in multi-processor mode. Many older applications cannot use
multiple processors.
If you have verified that your applications will support multiple processors
but the problem still exists, perform the procedures in "
Microprocessor
Problems ."
Input Errors
If a specific key or set of keys is pressed at the wrong time, a program may
give you unexpected results. See the documentation that came with your
application program to ensure that the values or characters you are entering
are valid.
Error Messages
Error messages are produced by the operating system, an application
program, or the computer. "
Messages and Codes " discusses error messages
that are generated by the operating system. If you receive an error message
that is not listed in "
Messages and Codes ," check your application program
documentation.