Memory-Resident Programs - Dell Inspiron 3500 Reference And Troubleshooting Manual

4-20 Dell Inspiron 3500 Portable Computer Reference and Troubleshooting Guide
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Stuck Key Test
Checks the internal microcode of the keyboard and the external interface of the
keyboard controller chip for a repeating key signal.
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The Mouse test checks the functionality of the mouse controller (which affects the
ability to move the touch pad/mouse pointer around the screen with its corresponding
movement on your desk or pad) and the operation of the touch pad/mouse buttons.
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Touch pad or mouse problems are as likely to be caused in RAM as they are to be
caused by a faulty touch pad or mouse. Three sources of problems include the config-
uration of a program (which changes the function of the touch pad or mouse),
memory-resident programs like Sidekick or ProKey, and failure of a device driver (the
software that controls the functions of a touch pad or mouse). If these possibilities
have been eliminated and the following symptoms persist, run the Mouse test:
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When you press a touch pad or mouse button, the function of the button contin-
ues; the button seems to be stuck.
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If the response when you press a touch pad or mouse button is different from the
usual response or the response you anticipated, the button contact may be
damaged.
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A touch pad or mouse button does not work at all.
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The cursor does not respond on the screen in accordance with the movements
you make with the touch pad or external mouse.
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There are no subtests for the Mouse test.
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The subtests in the Diskette Drives test group allow you to test diskette drives of all
capacities.
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Very often, a diskette drive problem may first appear to be a diskette problem. A box
of defective diskettes might produce faulty-drive error messages. The test results can
be confusing, so you should run the subtests in the Diskette Drives test group more
than once using diskettes from different sources.