Dell GX240 manual Input Errors, Error Messages, Device Drivers, Memory-ResidentPrograms

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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 make sure the values or characters you are entering are valid.

Error Messages

Error messages can be produced by an application program, the operating system, or the computer. “Messages and Codes” discusses the error messages that are generated by the computer. If you receive an error message that is not listed in “Messages and Codes,” check your operating system or application program documentation.

Device Drivers

Programs that use specialized subroutines called device drivers can also cause problems with your computer. For example, a variation in the way the data is sent to the monitor may require a special screen driver program that expects a certain kind of video mode or monitor. In such cases, you may have to develop an alternative method of running that particular program— the creation of a boot file made especially for that program, for example. Call the support service for the software you are using to help you with this problem.

Memory-Resident Programs

Many utilities and supplementary programs load either when the computer boots or from an operating system prompt. These programs are designed to stay resident in computer memory and thus always be available for use.

Because they remain in the computer's memory, memory conflicts and errors can result when other programs require use of all or part of the memory already occupied by these TSR programs.

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Solving Problems