Why does my mouse cursor jump randomly?

Random cursor jumping has three common causes: a dirty sensor (Fix 1), surface tracking problems on glass or patterned surfaces (Fix 2), or low battery causing inconsistent sensor power (Fix 3). Clean the sensor, move to a solid mouse pad, and check the battery in that order. If jumping continues after all three, USB 3.0 interference (Fix 6) or a failing sensor is the cause.

Why does my trackball skip when I spin it fast?

Trackball skipping at high speeds is usually caused by debris between the ball and the ball cradle that disrupts smooth rotation. Remove the ball from the cradle (most trackballs have a push-out hole on the bottom), clean the three contact points inside the cradle with a cotton swab and isopropyl alcohol, and clean the ball itself. Lint and skin oil are the most common contaminants. Clean the cradle every 2 to 4 weeks for heavy users. The Kensington Expert's ball can accumulate debris quickly — Kensington sells replacement balls if the original becomes scratched.

Can I use an ergonomic mouse on a standing desk mat?

Anti-fatigue standing desk mats (foam, gel, or rubber) are too thick and compressible for mouse tracking — the surface moves unpredictably under the mouse during use. Place a separate flat mouse pad on the desk surface for the mouse and keep the standing mat on the floor. Alternatively, use a Kensington trackball, which stays stationary on any flat surface and is not affected by the desk surface type.

My Logitech MX Vertical won't pair via Bluetooth — what do I do?

Press the button on the back of the MX Vertical to cycle between three device slots. If all three slots are used, the mouse will try to pair with a previously registered device. Switch to an empty slot (one without a device registered) by holding the back button for 3 seconds — the LED will flash to indicate a pairing-ready slot. Then pair the mouse in Windows Bluetooth settings. If the mouse still does not appear in the Bluetooth scan, ensure the mouse battery is charged (low battery can prevent Bluetooth pairing) and confirm the computer's Bluetooth is on and not in airplane mode.

Ergonomic Mouse Not Tracking? 8 Fixes for Wireless, Sensor, and Surface Issues

An ergonomic mouse that skips, stutters, disconnects, or drifts is almost always fixable without replacement. Sensor debris, surface problems, battery level, and wireless interference account for 90% of tracking problems. Work through these fixes before concluding the mouse has failed.

Fix 1: Clean the Sensor Lens

Cotton swab, isopropyl alcohol, clean the lens surface only. The most common cause of tracking issues.

Fix 2: Change the Surface

Optical sensors fail on glass and reflective surfaces. Move to a solid-colored mouse pad.

Fix 3: Replace or Recharge Battery

Low battery degrades sensor and wireless before killing power entirely. Check battery first for intermittent issues.

Fix 4: Reconnect the Wireless Receiver

Unplug the USB receiver, wait 10 seconds, replug. Use Logitech Unifying software to repair if needed.

Fix 5: Fix Bluetooth Disconnections

Disable power management for the Bluetooth adapter in Device Manager.

Fix 6: Move Receiver Away from USB 3.0 Devices

USB 3.0 causes 2.4GHz interference. Move receiver to a USB 2.0 port or use an extension cable.

Fix 7: Update Firmware via Logitech Options+

Firmware updates fix sensor calibration and Bluetooth stability.

Fix 8: Test on Another Computer

Isolates whether the issue is the mouse or the computer. Mouse fails on both → hardware issue, contact warranty support.

For ergonomic mouse recommendations, see best ergonomic mice.