HP Compaq Presario,Presario 6001 Getting Started page 98

Finding Help & Support
Keyboard and Scroll Mouse (Continued)
Symptom
Mouse moves only vertically
or horizontally.
7–24
Problem
Mouse roller ball is dirty.
Mouse needs repair.
Solution
Remove roller ball cover from bottom of mouse and
clean with mouse cleaning kit (available from most
computer stores).
See the Warranty and Support Guide for details.
Getting Started