Dell Latitude XT User's Guide - Page 146

In Windows XP, click Properties→ Hardware→ Device Manager. NOTE: In Windows Vista®, the User Account Control window may appear. If you are an administrator on the Tablet-PC, click Continue; otherwise, contact your administrator to continue. Scroll down the list to see if any device has an exclamation point (a yellow circle with a [!]) on the device icon. If an exclamation point is next to the device name, you may need to reinstall the driver or install a new driver (see "Reinstalling Drivers and Utilities" on page 146). Reinstalling Drivers and Utilities NOTICE: The Dell Support website at support.dell.com and your Drivers and Utilities media provide approved drivers for Dell™ computers. If you install drivers obtained from other sources, your Tablet-PC might not work correctly. Using Windows Device Driver Rollback If a problem occurs on your Tablet-PC after you install or update a driver, use Windows Device Driver Rollback to replace the driver with the previously installed version. 1 Click Start , and right-click Computer. In Windows XP, click Start and right-click My Computer. 2 Click Properties→ Device Manager. In Windows XP, click Properties→ Hardware→ Device Manager. NOTE: In Windows Vista, the User Account Control window may appear. If you are an administrator on the Tablet-PC, click Continue; otherwise, contact your administrator to enter the Device Manager. 3 Right-click the device for which the new driver was installed and click Properties. 4 Click the Driver tab→ Roll Back Driver. If Device Driver Rollback does not resolve the problem, then use System Restore (see "Restoring Your Operating System" on page 148) to return your Tablet-PC to the operating state that existed before you installed the new driver. 146 Reinstalling Software