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Mouse Guides & Fixes

Plain-English guides to fixing, tuning and choosing your mouse and keyboard. Each one links to the free test that goes with it.

Troubleshooting

How to Fix a Mouse That Double-Clicks: Mouse double-clicking on a single click? Here is how to confirm it, fix it with software and cleaning, and when to replace the switch.
Mouse Side Buttons Not Working?: Mouse side buttons (back and forward) not working? Test them, then fix remapping, browser and driver issues with these 7 steps.
Why Your Scroll Wheel Jumps (and How to Fix It): Scroll wheel jumping up when you scroll down, or skipping? Find out why and fix it with cleaning, settings and a quick scroll test.
Why Is My Mouse Lagging or Stuttering?: Mouse lagging, stuttering or freezing? Test polling rate and skips, then fix wireless, USB and Windows causes with these 10 steps.
Mouse Cursor Drifting or Jittering?: Cursor moving on its own, shaking or drifting? Find out what causes mouse jitter and drift, and how to fix it.
Left Click Not Working? Here's What to Do: Mouse left click not working or only working sometimes? Test it, then try these fixes for settings, drivers and worn switches.

What Is Mouse Polling Rate?: Mouse polling rate explained: what Hz means, 125 vs 500 vs 1000 Hz, whether higher is better, and how to check yours.
1000 Hz vs 4000 Hz vs 8000 Hz: Is 4000 Hz or 8000 Hz polling worth it over 1000 Hz? Real-world benefits, CPU and battery cost, and who should use it.
Why Polling Rate Tests Disagree: Why do online polling rate tests show different numbers? Browsers, frames, power saving and how to get an accurate reading.

DPI vs CPI vs eDPI Explained: DPI, CPI and eDPI explained simply, with examples, how they relate to in-game sensitivity, and how to measure your real DPI.
How to Check Your Mouse DPI: Find out your mouse DPI on Windows and Mac, from the mouse software, the spec sheet, or by measuring it online.
How to Change Mouse DPI: How to change your mouse DPI on gaming and office mice, and how to choose the right DPI and sensitivity for games.
How to Convert Sensitivity Between Games: Convert your mouse sensitivity between CS2, Valorant, Apex, Overwatch 2 and more, and keep the same cm/360.

Mouse Sensor Types Explained: Optical vs laser mouse sensors, what PixArt sensors are, lift-off distance and what actually matters when choosing a mouse sensor.
Optical vs Mechanical Mouse Switches: Optical vs mechanical mouse switches: feel, durability, double-click chatter and latency compared.

Palm, Claw and Fingertip Grip Explained: Palm, claw and fingertip mouse grips explained, with pros and cons, and how to pick a mouse shape and size for your grip.

How to Butterfly Click: Learn how to butterfly click step by step, how fast it is, whether it is allowed, and how to practise with a CPS test.
How to Jitter Click: Learn how to jitter click for 10 to 14 CPS, how to stay safe while doing it, and how to practise.
How to Drag Click: How to drag click for 20+ CPS, which mice work best, and how to test your drag clicks.
How to Click Faster: Eight practical tips to improve your clicks per second, from technique and grip to mouse settings and practice routines.

Cloth vs Hard vs Glass Mouse Pads: Cloth, hard and glass mouse pads compared for speed, control, sensor tracking and durability, plus how to clean them.
How to Clean Your Mouse: How to clean a mouse safely: the sensor, buttons, scroll wheel and feet, plus what not to use.
Mouse Feet and Skates Explained: What mouse feet do, PTFE vs glass skates, when to replace them and how they change glide and tracking.

How to Choose a Gaming Mouse in 2026: A practical gaming mouse buying guide for 2026: shape, weight, sensor, switches, polling rate and wireless, explained simply.
What Makes a Good FPS Mouse?: What to look for in a mouse for FPS games like CS2 and Valorant: weight, shape, sensor, buttons and settings.
Budget Mouse? Check These 6 Things on Day One: Bought a cheap mouse? Six quick tests to run on day one so you can return it if it double-clicks, lags or tracks badly.

Keyboard Key Not Working?: One keyboard key not working, sticking or repeating? Test every key online, then fix it with these steps.
Keyboard Ghosting and Rollover Explained: What keyboard ghosting is, what 6KRO and NKRO mean, and how to test your keyboard's rollover online.