Simkits TRC Multi I/O Card, Input problem

Hi Everyone,
Not sure if many people have used this card.
I purchased this card over a year ago. However i have just started to use the input pins, and have found that whatever ones are activated, stay "on". I am trying to set up an Autobrake switch. Nothing is connected to it yet. I have just assigned the various pins to perform Autobrake 1, 2, 3, ect. When i go into flight sim, the virtual autobrake switch gets "Stuck" on positions. If i try and move the switch using a mouse click, it moves for a split second, and then returns to Autobrake 2. I Have tried all the pins, with the same result.

Help Appreciated
Thanks
Regards
TOM