Using Your Computer 2-217. Gently put the ball back into the mouse ball cover.8. Fit the ball cover back into the mouse and turn the covercounterclockwise until it locks in place.Moving or Shipping Your SystemUse these steps to prepare your system for moving orshipping:.1. Back up your hard disk files onto diskettes or tapecartridges.Be sure to take precautions for storing and transportingdiskettes or cartridges so that they are not exposed tomagnetic fields or electrical impulses.2. Remove any diskette from the diskette drive. If you havea CD in the CD-ROM reader, remove the CD.3. Turn off the system unit and any external optionsconnected to it.4. Unplug the system unit power cable from the wall outletor surge suppressor, then from the unit.5. Unplug any external options from the wall outlets orsurge suppressor, then disconnect them from the systemunit.6. Pack the system components in the original shippingmaterials and cartons. If these are not available, be sureto use adequate packing materials to protect thecomponents.To set up your system, follow the steps on the PowerMatePro2200 Quick Setup Sheet that comes with your computer.