Hi

I'm trying to run 3 screens from my Latitude 5401 connected to a WD19 port. I can get 2 screens to work using either 2 DP's or DP and HDMI after a lot of fiddling and screens flickering. When I try 3 screens then I get 2 flickering.

I've got all the latest updates and patches installed. Monitors factory reset and still no joy. 

I've seen that there seems to be a lot of issues with this dock. If anyone has any other ideas they would be much appreciated!

Thanks.