Some ThinkPad systems cannot use Triple Display Configuration when using two DVI digital ports.

• First Display:  Active ThinkPad Display
• Second and Third Displays:  Connected to DVI digital ports on ThinkPad Mini Dock Plus

Note:
The Triple Display Configuration will work correctly when using two DisplayPorts.

The following ThinkPad systems configured with Mini Dock Plus running on Windows 7 may be affected by this symptom:

• L430
• T430s, T430si

To enable three displays on these machines, the configuration should be one of the following below:

1. DisplayPort + DisplayPort + LCD
2. DisplayPort + DisplayPort + VGA
3. DisplayPort + DisplayPort + DVI (one DisplayPort is connected to system mini-DisplayPort port)
4. DisplayPort + DisplayPort + DisplayPort (one DisplayPort is connected to system mini-DisplayPort port)