Dell™ Latitude™ C540/C640 User's GuideClick the links to the left for information on the features and operation of your computer. For information onother documentation included with your computer, see "Finding Information."CAUTION: Follow the safety instructions in the System Information Guide to help protectyour computer from damage and ensure your own personal safety.Notes, Notices, and CautionsNOTE: A NOTE indicates important information that helps you make better use of your computer.NOTICE: A NOTICE indicates either potential damage to hardware or loss of data and tells you how toavoid the problem.CAUTION: A CAUTION indicates a potential for property damage, personal injury, or death.Abbreviations and AcronymsFor a complete list of abbreviations and acronyms, see the Glossary.____________________Information in this document is subject to change without notice.© 2002–2003 Dell Computer Corporation. All rights reserved.Reproduction in any manner whatsoever without the written permission of Dell Computer Corporation is strictly forbidden.Trademarks used in this text: Dell, the DELL logo, AccessDirect, Latitude, Dell Precision, OptiPlex, Inspiron, Dimension, DellTravelLite, and DellNet are trademarks of Dell Computer Corporation; Intel, Pentium, and Celeron are registered trademarks andIntel Speedstep is a trademark of Intel Corporation; Microsoft, Windows, Windows NT, and MS-DOS are registered trademarks ofMicrosoft Corporation; ENERGY STAR is a registered trademark of the U.S. Environmental Protection Agency. As an ENERGY STARPartner, Dell Computer Corporation has determined that this product meets the ENERGY STAR guidelines for energy efficiency.Other trademarks and trade names may be used in this document to refer to either the entities claiming the marks and names ortheir products. Dell Computer Corporation disclaims any proprietary interest in trademarks and trade names other than its own.Model Number PP01LApril 2003 P/N 2P726 Rev. A03