Unexpected charactersLockups and Software ProblemsThe computer does not startThe computer stops respondingA program stops respondingA program crashes repeatedlyA program is designed for an earlier Windows operating systemDisable the numeric keypad — Press to disable the numeric keypad if numbers are displayed instead of letters. Verify that thenumbers lock light is not lit.CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide.Ensure that the AC adapter is firmly connected to the computer and to the electrical outletNOTICE: 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 or moving your mouse, press and holdthe power button for at least 8 to 10 seconds until the computer turns off. Then restart your computer.End the program —1. Press simultaneously.2. Click Applications.3. Click the program that is no longer responding.4. Click End Task.NOTE: 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.If 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 XP operating systemenvironments.1. Click the Start button, point to All Programs® Accessories, and then click Program Compatibility Wizard.2. In the welcome screen, click Next.3. Follow the instructions on the screen.
