HP Pro ms218 Maintenance And Service Manual page 47

Table 5-4
Cursor responds slowly, moves
only vertically or horizontally, or
does not track smoothly.
I cannot move the cursor using
the arrow keys on the number
key pad.
40 Chapter 5 Software Troubleshooting
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Keyboard and mouse (with cable) (continued)
For an optical mouse:
●
●
For detailed cleaning instructions, go to:
Select your country/region and language, search on your computer model number, and
then search on the keyword cleaning.
Press the
be on if you want to use the arrow keys on the number key pad.
manuals search engine
Clean the optical mouse: Gently wipe the light sensor lens on the bottom of the
mouse with a lint-free cloth (not paper).
Use a mouse pad, white sheet of paper, or other less reflective surface under the
mouse.
Num Lock key to turn off the Num Lock light. The Num Lock light should not
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