IPAc keys stopped working

[CathalDublin]

The following keys stopped working on my ipac
Left Alt, S, Q
I've disconnected the 3 wires and tested the terminals with a ground and nothing

If I click tools - Firmware update, when it completes the 3 buttons appear as pushed

Heres a screendump, any ideas?

[CathalDublin]

Just tested on my laptop and if I disconnect the ground for the ipac 1sw2 flashes as if you are repetedly pressing it
Still the same with nothing plugged into the ipac except the ground, Does anyone know the pinouts of the ps2 to usb cable on the ipac to test if its this or the ipac its self

I hope its not the ipac, I've a feeling its the cable though as it was all rapped up and taped together

[CathalDublin]

just tried a different cabke so im afraid my ipac died boo hoo