Dell Latitude C840 - Manual (Page 106)

NVIDIA Video Controller
1. Open the Control Panel window:
In Windows 2000, click the Start button, click Settings, and then click the Control Panel icon.
In Windows XP, click the Start button and then click the Control Panel icon.
2. Double-click the Display icon, click the Settings tab, and then click Advanced.
3. Click the TwinView tab.
4. Click Clone to enable the television.
5. Click Apply.
6. Click OK to confirm the settings change.
7. Click Yes to keep the new settings.
8. Click OK.
Enabling S/PDIF Digital Audio
If you want to enable Dolby Digital 5.1 audio for DVD playback, follow the instructions in " Enabling Dolby Digital 5.1 Audio for DVD Playback ." To enable S/PDIF
audio for all Windows sounds, follow the instructions in " Enabling S/PDIF in the Windows Audio Driver ."
Enabling Dolby Digital 5.1 Audio for DVD Playback
If your computer has a DVD drive, you can enable Dolby Digital 5.1 audio for DVD playback.
1. Double-click the InterVideo WinDVD icon on the Windows desktop.
2. Insert a DVD into the DVD drive.
If the DVD begins playing, click the stop button.
NOTE: Be sure that you have properly connected the television before you enable the display settings.