Cursor Does Not Move At All

∙The mouse may not have been detected by your computer (see “Mouse Not Detected” above).

∙The optical sensor may be blocked (see “Cursor Jumps or Sticks” below).

∙You may be using the mouse on an incompatible surface. Make sure you are not using your mouse on a transparent surface like glass or a reflective surface like a mirror; on a rough or porous surface that is not smooth; or on a surface with complex graphic and color patterns.

Cursor Jumps or Sticks

∙Dust, dirt, or crumbs may be lodged on the edge of the optical sensor opening on the bottom of the mouse. Simply gently blow or brush the obstructing material away with a soft cloth . However, do not insert any objects through the opening.

Mouse Sometimes Works and Sometimes Does Not

∙Your computer’s power management and/or sleep settings may be affecting the way the mouse works. Please try changing these settings to see whether that solves the problem.