KD02TTY

Hi
I loaded Pscan last week and was able to get engine diagnostic information for my 2002 MGTF.
I tried to code a new Lucas remote fob today.
I plugged the port cable into the car with ignition off.
The green LED started flashing straight away without the ignition being turned on.
I plugged the USB into my laptop and clicked on the Pscan icon on my task bar.
I got the following screen.

Clicking on "NEXT" does nothing.
Turning ignition on makes no difference.
In fact, the only thing I can do with the Pscan window is minimise it. "BACK" or "NEXT" or the X to close the window do nothing.
Can anyone advise me what I need to do please ?
Thank you