Test the keyboard — Connect a properly working keyboard to the computer, and try using the keyboard. Ifthe new keyboard works, the original keyboard is faulty.Check for Software and Hardware ConflictsLockups and Software ProblemsCAUTION: Before you begin any of the procedures in this section, follow the safety instructions located inthe Product Information Guide.The computer does not start upCheck the Diagnostic LightsEnsure that the Power Cable is Firmly Connected to The Computer and to The Electrical OutletThe computer stops respondingNOTICE: You might lose data if you are unable to perform an operating system shutdown.Turn the computer off — If you are unable to get a response by pressing a key on your keyboard ormoving your mouse, press and hold the power button for at least 8 to 10 seconds until the computer turns off.Then restart your computer.A program stops respondingEnd the program —1. Press simultaneously.2. Click Applications.3. Click the program that is no longer responding.4. Click End Task.A program crashes repeatedlyNOTE: Software usually includes installation instructions in its documentation or on a floppy disk or CD.Check the software documentation — If necessary, uninstall and then reinstall the program.A program is designed for an earlier Windows operating systemIf You Are Using Windows XP, Run the Program Compatibility Wizard —The Program Compatibility Wizard configures a program so it runs in an environment similar to non-Windows
