90 TroubleshootingUnexpected charactersDI S A B L E T H E N U M E R I C K E Y P A D — Press to disable the numerickeypad if numbers are displayed instead of letters. Verify that the numberslock light is not lit.Lockups and Software ProblemsCAUTION: Before you begin any of the procedures in this section, follow thesafety instructions in the Product Information Guide.The computer does not startCH E C K T H E A C A D A P T E R — Ensure that the AC adapter is firmly connected tothe computer and to the electrical outlet.The computer stops respondingNOTICE: You might lose data if you are unable to perform an operating systemshutdown.TU 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 keyon your keyboard or moving your mouse, press and hold the power button for atleast 8 to 10 seconds until the computer turns off, then restart your computer.A program stops responding or crashes repeatedlyEN D T H E P R O G R A M —1 Press simultaneously.2 Click the Applications tab and select the program that is no longer responding.3 Click End Task.NOTE: The chkdsk program may run when you restart the computer. Follow theinstructions on the screen.CH E C K T H E S O F T W A R E D O C U M E N T A T I O N — If necessary, uninstall and thenreinstall the program. Software usually includes installation instructions in itsdocumentation or on a floppy disk or CD.Downloaded from www.Manualslib.com manuals search engine
