Chapter 3. Operating and caring for your computer 23Using video featuresYour computer has a super video graphics array (SVGA) graphics controller.SVGA is a standard for displaying text and graphics images on a monitor screenand supports a variety of video modes. Video modes are different combinations ofresolution, refresh rate, and color.Depending on the applications you use and your personal preferences, you mightneed to change the video mode.To change the video mode:1. From the Windows desktop, click Start.2. Select Settings, and then click Control Panel.3. Double-click Display.4. Click Settings, make the necessary changes, and then click OK.Video device driversTo take full advantage of the graphics adapter in your computer, some operatingsystems and application programs require software, known as video devicedrivers. These device drivers provide support for greater speed, higherresolution, more available colors, and flicker-free images. Device drivers for thegraphics adapter and a README file with instructions for installing the devicedrivers are provided on the Product Recovery CD that comes with your computer.If your computer has IBM-preinstalled software, video device drivers havealready been installed on the hard disk. However, you can use the device driverinstallation instructions if you need to reinstall the device drivers or if you needinformation on obtaining and installing updated device drivers. See the AboutYour Software publication for more information.Using audio featuresYour computer has a digital audio controller built into the system board. Thesystem-board audio controller supports applications written for Sound Blasterstandards and are compatible with the Microsoft Windows Sound System. Theaudio connectors in your computer are 3.5 mm (1/8-in.) mini-jacks.Controlling volumeYou can control the volume through several different means:• The software volume control is accessible through the speaker icon in thetaskbar, which is located at the bottom-right corner of the Windows desktop.— If you click the speaker icon one time, the volume control is displayed.Use your mouse to drag the volume-control slider up or down to controlthe volume, or select the Mute check box to turn the audio off.