2torial #0554: Learn2 Clean Your Computer (Continued) Sponge bathe your mouse When your mouse starts to skip, it's time for a cleaning. You can minimize the amount of stuff that's picked up by keeping it clean and using a mousepad. Always turn off the computer before disconnecting your mouse.   Disconnect the mouse, and turn it upside down. You'll find a little cover that either rotates counterclockwise or slides in one direction.   Rotate or slide the little cover, and it will come off and allow you to take out the ball inside. Wipe the ball with the cloth that's been sprayed with cleaning water, and black gunk will come off. Dry it off and set it aside.   Inside the mouse itself, you'll find three little rollers, or rolling bars. Take a cotton swab and twirl the tip between your fingers to reduce the chance of any material coming off of it. Spritz just a little water onto it. Clean the rollers with the swab, using your fingers if necessary to pick out bits of gunk.   Place the dry ball back in the mouse and close it up Step 5