128 Reinstalling SoftwareMicrosoft Windows Vista™1 Click the Windows Vista start button , and right-click Computer.2 Click Properties→ Device Manager.NOTE: The User Account Control window may appear. If you are anadministrator on the computer, click Continue; otherwise, contact youradministrator to continue.Scroll down the list to see if any device has an exclamation point (a yellowcircle with a [!]) on the device icon.If an exclamation point is next to the device name, you may need to reinstallthe driver or install a new driver (see "Reinstalling Drivers and Utilities" onpage 128).Reinstalling Drivers and UtilitiesNOTICE: The Dell Support website at support.dell.com and your Drivers andUtilities media provide approved drivers for Dell™ computers. If you install driversobtained from other sources, your computer might not work correctly.Using Windows Device Driver RollbackIf a problem occurs on your computer after you install or update a driver, useWindows Device Driver Rollback to replace the driver with the previouslyinstalled version.Windows XP:1 Click Start→ My Computer→ Properties→ Hardware→ Device Manager.2 Right-click the device for which the new driver was installed and clickProperties.3 Click the Drivers tab→ Roll Back Driver.Windows Vista:1 Click the Windows Vista start button , and right-click Computer.2 Click Properties→ Device Manager.NOTE: The User Account Control window may appear. If you are anadministrator on the computer, click Continue; otherwise, contact youradministrator to enter the Device Manager.3 Right-click the device for which the new driver was installed and clickProperties.
