MDT 2013 & WDS - Issues with FAT Client

I have installed MDT 2013 and WDS. My current config is thus:

WDS, MDT and DHCP all on the SAME server I have configured DHCP Options 60,66 and 67.

I have added install image and PXE litetouch too.

Scenario 1

On my VirtualBox i get as far as selecting one of two Litetouch options-x86 or x64. When either is selected I get the screen shot with error ststus 0xc000000f.

I read a technet post, which said i had to add the drivers for the NIC. I did this. Still no joy.

Scenario 2

On a laptop, I boot to the LAN card. It PXE boots, gets a DHCP address and WDS logs tell me that the client successfully downloaded the PXE environment. I confirmed the MAC address :)

Then the client states WDS: PXE Boot Aborted.
PXE-M0F- Exiting Intel boot agent.

Please help. I have no idea what is happening at this point.