Displayport question about X220 and Ultrabase 3

[Xevyn]

I'd like to be able to run two external monitors while my X220 is docked (internal displayed turned off).  I know that it is not possible to use the onbaord vga and the vga on the Ultrabase at the same time as the onboard vga is disabled when the X220 is docked.  However, is the same true for the onboard displayport on the X220 when it is docked?

[Xevyn]

Looks like its possible to use the onboard displayport and the displayport of the ultrabase at the same time.  I tried attaching a monitor to the onboard displayport while docked and it worked so that seems to indicate that the port is active unlike the onboard vga connector...

[jared2]

I have the display port and it works to have 2 external monitors, but I want to use the laptop screen as well...  laptop on the left and two other screens on the right.

When I open the display settings, all 3 screens show up, but it doesn't let me "extend" onto 2 additional screens...it blanks one out.