Quick Tip: Check the Laser of Your Magic Mouse
Ever find that your cursor is acting sluggish on screen? Maybe it jumps around slightly but you can’t figure out why. Nothing in software seems to be the issue, and you already tried shaking the pointing back and forth in a vain attempt to knock some sense back into it.
Try something for me real quick: Flip over the mouse, look closely at the little aperture that reveals the laser and lens housing, and pull out the little hair that’s gotten stuck in that hole and is currently obscuring some part of the tracking mechanism. Place the mouse back on your desktop and mouse away in unencumbered glory.