96 Troubleshooting• If you have other telephone devices sharing the line, such as an answering machine,fax machine, surge protector, or line splitter, bypass them and use the telephone toconnect the modem directly to the telephone wall jack. If you are using a line that is 3meters (10 feet) or more in length, try a shorter one.Keyboard ProblemsCAUTION: Before you begin any of the procedures in this section, follow thesafety instructions in theProduct Information Guide.C H E C K T H E K E Y B O A R D C A B L E —• Ensure that the keyboard cable is firmly connected to the computer.• Shut down the computer, reconnect the keyboard cable as shown on the setupdiagram for your computer, and then restart the computer.• Ensure that the cable is not damaged or frayed and check cable connectors for bent orbroken pins. Straighten any bent pins.• Remove any keyboard extension cables and connect the keyboard directly to thecomputer.T E S T T H E K E Y B O A R D — Connect a properly working keyboard to the computer, thentry using the keyboard.R U N T H E H A R D W A R E T R O U B L E S H O O T E R — See "Troubleshooting Software andHardware Problems in the Microsoft ® Windows® XP and Microsoft Windows Vista™Operating Systems" on page 131.Lockups and Software ProblemsCAUTION: Before you begin any of the procedures in this section, follow thesafety instructions in theProduct Information Guide.The computer does not start upC H E C K T H E D I A G N O S T I C L I G H T S — See "Diagnostic Lights" on page 105 .E N S U R E T H A T T H E P O W E R C A B L E I S F I R M L Y C O N N E C T E D T O T H E C O M P U T E R A N D T OT H E E L E C T R I C A L O U T L E TThe computer stops respondingNOTICE: You may lose data if you are unable to perform an operating systemshutdown.T U R N T H E C O M P U T E R O F F — If you are unable to get a response by pressing a key onyour keyboard or moving your mouse, press and hold the power button for at least 8 to
