Gateway M275 Notebook User Manual page 249

To clean your trackball mouse:
1
Turn the mouse upside down.
2
Rotate the retaining ring on the bottom of the mouse counter-clockwise,
then remove the retaining ring and mouse ball.
3
Remove any dust, lint, or dirt from the mouse ball with a soft cloth.
4
Clean the mouse rollers with a cotton swab dipped in isopropyl alcohol.
Mouse rollers
5
Replace the mouse ball and lock the retaining ring into place.
www.gateway.com
Cleaning your convertible tablet PC
239