Sod it
I took off the side of the PC tower to replace the DVD drive yesterday, I had been using the hoover to suck the dust out of the intake fans on the front, the hoover had sucked off the small button you press to open the DVD drawer.
Just below the DVD drive there's a panel with 4 slots for USB and Firewire slots that I use to connect the camera, anyways I'll have to remove the side again coz I must've disturbed the internal connection wire to the panel, . . sod it.