Dell PRECISION 530 - Manual (Page 206)

206 Solving Problems
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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 system 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.
Typically, your operating system's startup files or folder contain commands
to start TSR programs when you turn on your computer. If you suspect that
one of these TSR programs is causing a memory conflict, remove the
commands that start them from the start-up file. If the problem you were
experiencing does not recur, one of the TSR programs probably created the
conflict. Add the TSR commands back into the start-up files one at a time
until you identify which TSR program is creating the conflict.
Program Conflicts
Some programs may leave portions of their setup information behind, even
though you have exited from them. As a result, other programs cannot run.
Rebooting your computer can confirm whether these programs are causing
the problem.