Troubleshooting 7-5Keyboard/Mouse ProblemsCheck the following problem to see the possible cause and solution.! Mouse or keyboard does not respond.The mouse and keyboard might have been connected after turning on thesystem. Turn the system off, make sure the mouse and keyboard areconnected, and turn the system back on.! Mouse or keyboard does not take the system out of the powersaving sleep mode.The power saving wake-up mode is activated only by the power/sleepbutton or by pressing the space bar twice. Press and immediately releasethe power/sleep button to take the system out of the sleep mode.! Image appears on screen but nothing happens when using themouse or keyboard.Make sure the keyboard or mouse cable is firmly connected to the rear ofthe system.If this does not help, turn off the system, wait five or more seconds, andturn on the system.! Mouse cursor moves erratically or not at all.Clean the mouse (see Section 6, “Preventive Maintenance”).If this does not help, the mouse might need to be replaced.CD-ROM Drive ProblemsCheck the following problems to see the possible cause and solution.! The system does not see the CD-ROM drive.The drive designation is wrong and should be changed. The drivedesignation for the drive depends upon the storage device configurationin the system. To find out what drive designation letter is assigned to thedrive, double click My Computer on the Windows 98, Windows 2000, orWindows NT 4.0 desktop. The drive designation is below the drive icon.As an alternative, open Windows Explorer and scroll down the list offolders until you locate the drive icon. The drive designation is beside theicon.! The drive is not reading a disc.Check that the disc is inserted in the disc tray with the printed label sideup.Check that the disc is a data disc, not a music disc.
