Troubleshooting 19Battery ProblemsCAUTION: There is a danger of a new battery exploding if it is incorrectlyinstalled. Replace the battery only with the same or equivalent type recommendedby the manufacturer. Discard used batteries according to the manufacturer'sinstructions.CAUTION: Before you begin any of the procedures in this section, follow thesafety instructions that shipped with your computer. For additional safety bestpractices information, see the Regulatory Compliance Homepage atwww.dell.com/regulatory_compliance.RE P L A C E T H E B A T T E R Y — If you have to repeatedly reset time and date informationafter turning on the computer, or if an incorrect time or date displays during start-up,replace the battery (see "Coin-Cell Battery" on page 117). If the battery still does notwork properly, contact Dell at support.dell.com.Drive ProblemsCAUTION: Before you begin any of the procedures in this section, follow thesafety instructions that shipped with your computer. For additional safety bestpractices information, see the Regulatory Compliance Homepage atwww.dell.com/regulatory_compliance.EN S U R E T H A T M I C R O S O F T ® WI N D O W S ® RE C O G N I Z E S T H E D R I V E —Windows XP:• Click Start and click My Computer.Windows Vista®:• Click the Windows Vista Start button and click Computer.If the drive is not listed, perform a full scan with your antivirus software to check forand remove viruses. Viruses can sometimes prevent Windows from recognizing thedrive.TE S T T H E D R I V E — Insert another disc to eliminate the possibility that the originaldrive is defective.CL E A N T H E D R I V E O R D I S K — See "Cleaning Your Computer" in the Setup and QuickReference Guide.CH E C K T H E C A B L E C O N N E C T I O N SRU N T H E HA R D W A R E TR O U B L E S H O O T E R — See "Hardware Troubleshooter" onpage 12.RU N T H E DE L L DI A G N O S T I C S — See "Dell Diagnostics" on page 13.