Display is detected but has no signal

I just connected my plugable device to my computer, went through the installation process and even through the steps on this thread: http://support.plugable.com/plugable/…

But while my computer does detect the external display connected through the plugable docking station, it does not display anything in it (it shows no video). The display does work if plugged directly into my laptop. Any thoughts on how to get this to work? I am no longer getting a warning of driver incompatibility after following the steps in the link above.