v Appendix D, "Wireless related information," on page 75 and Appendix E, "Notices," on page 77. v ThinkPad Regulatory Notice included in the package with this publication. Second Edition (June 2006) © Copyright Lenovo 2006. All rights reserved. GOVERNMENT USERS ­ RESTRICTED RIGHTS: Our products and/or services are provided with RESTRICTED RIGHTS. Use, duplication or disclosure by the Government is subject to the GSA ADP Schedule contract with Lenovo Group Limited, if any, or the standard terms of this commercial license, or if the agency is unable to accept this Program under these terms, then we provide this Program under the provisions set forth in Commercial Computer Software­Restricted Rights at FAR 52. 227-19, when applicable, or under Rights in Data-General, FAR 52. 14 (Alternate III). Contents Read first. v Chapter 1. Finding information. 1 This guide and other publications. 1 Finding information with the ThinkVantage button. 2 Chapter 2. Caring for your ThinkPad computer. Chapter 7. Upgrading and replacing devices. Replacing the battery. Upgrading the hard disk drive. Replacing memory. 3 Chapter 3. Solving computer problems Frequently asked questions. Diagnosing problems. Troubleshooting. Error messages...