Identifying Drivers
If you experience a problem with any device, identify whether the driver is the source of your problem and, if necessary, update the driver.
NOTE: You must be logged in with Administrator privileges to perform this procedure.
Windows® XP:
1Click Start, then click Control Panel.
2Click System.
3In the System Properties window, click the Hardware tab.
4Click Device Manager.
Windows Vista®:
1Click Start 
and
2 Click Properties Device Manager.
NOTE: The User Account Control (located to the left under Tasks window) may appear. If you are an administrator on the computer, 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 84).
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 computer might not work correctly.
Using Windows Device Driver Rollback
If a problem occurs on your computer after you install or update a driver, use Windows Device Driver Rollback to replace the driver with the previously installed version.
NOTE: You must be logged in with Administrator privileges to perform this procedure.
Windows XP:
1Click Start, then click Control Panel.
2Click System.
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