Instructions for using this file.
Remove the existing driver.
1. Click on the START button and select SETTINGS from the Start Menu.
2. Click on CONTROL PANEL in the settings submenu
3. Click on ADD/REMOVE PROGRAMS in Control Panel.
4. Highlight the MDP3900V-U Modem in the Add/Remove programs properties box and click on the ADD/REMOVE button.
5. Click NEXT to uninstall the existing driver.
6. Click the FINISH button to complete the process.
6. Click YES to restart the computer.

Installing the updated drivers.
7. Click on the START button and select RUN from the Start Menu.
8. In the Run dialog box type in C:\Dell\Drivers\49XJC\Setup.exe
9. Click OK to begin driver file installation.
10. Follow the screen prompts to complete the installation.