It's a broken switch. Generally it's not worth the cost to fix it. But if you're really attached to the mouse, you can try fixing it or replacing the switch. Replacements can come from another mouse, or by swapping the left and right button switches.
It's a broken switch. Generally it's not worth the cost to fix it. But if you're really attached to the mouse, you can try fixing it or replacing the switch. Replacements can come from another mouse, or by swapping the left and right button switches.