31Solving ProblemsLockups and Software ProblemsIf the computer does not start up — Ensurethat the power cable is firmly connected to thecomputer and to the electrical outlet.If a program stops responding — End the program:Press simultaneously.1.Click2. Applications.Click the program that is no longer3.respondingClick4. End Task.If a program crashes repeatedly — Check thesoftware documentation. If necessary, uninstalland then reinstall the program.NOTE: Software usually includesinstallation instructions in itsdocumentation or on the CD.If the computer stops responding —WARNING: You might lose data if you areunable to perform an operating systemshutdown.Turn the computer off. If you are unable to get aresponse by pressing a key on your keyboard ormoving your mouse, press the power button forat least 8 to 10 seconds until the computer turnsoff and then restart your computer.If a program is designed for an earlierMicrosoft ® Windows ® operating system —Run the Program Compatibility Wizard. The ProgramCompatibility Wizard configures a program so thatit runs in an environment similar to non-WindowsVista operating system environments.Click1. Start → Control Panel→Programs→ Use an older program with thisversion of Windows.In the welcome screen, click2. Next.Follow the instructions on the screen.3.