42 Solving Problemsw w w . d e l l . c o m | s u p p o r t . d e l l . c o mMouse ProblemsC 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 (see page 27), reconnect the keyboard cable asshown on the setup diagram for your computer, and then restart the computer.• Ensure that the keyboard cable is firmly connected to the computer.• Check the cable connector for bent or broken pins and for damaged or frayedcables. Straighten bent pins.• Remove 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 thecomputer, and try using the keyboard. If the new keyboard works, the originalkeyboard is faulty.C H E C K F O R I N T E R R U P T R E Q U E S T C O N F L I C T S — See page 58.R E S T A R T T H E C O M P U T E R —1 Simultaneously press to display the Start menu.2 Type u, press the keyboard arrow keys to highlight Shut down or Turn Off, andthen press .3 After the computer turns off, press the power button to restart the computer.I F Y O U C O N N E C T E D T H E M O U S E B E F O R E T U R N I N G O N T H EC O M P U T E R , R E C O N N E C T T H E M O U S E C A B L E —1 Simultaneously press to display the Start menu.2 Type u, press the keyboard arrow keys to highlight Shut down or Turn Off, andthen press .3 After the computer turns off, reconnect the mouse cable as shown on thesetup diagram for your computer.4 Start the computer.