Update time, some slight progress now that the HDMI to DVI-D adaptor has arrived.
I have the Crossover monitor set up the DVI-D to DVI-D interface and the LG on the HDMI to DVI-D one, on the following print screens the LG is monitor 1 and Crossover is monitor 2 (on the windows screen resolution setting screen, on the Nvidia print screen the Crossover is recognised by its model number and the LG is shown as LG. On both screen prints the monitors native resolutions are being recognised correctly as well and the Crossover indicator light remains blue and the screen is lit by the back light but no screen image of any sort.
If I connect the Crossover as screen 1 and LG, screen 2, the Crossover indicator lights lights up the normal blue colour when it receives a signal but after a few seconds lights up red and the screen switches off.
So then, would I be correct in thinking then that the interface board board is functioning correctly and the fault still lays within the T-Conn or the panel itself?
EDITAfter the Crossover has been switched on for about 30 mins (while I was trying a few things out), the power brick got extremely hot as did the actual monitor itself. I have never known a monitor to get so hot, you could feel the hot radiating from the panel so that is not a good sign.