The problem is most likely due to too much force being applied to the cable and not the fault of the shifter. This can occur for two reasons.
(1) The FD is simply not compatible with the shifter. I would never use any other brand of FD with a Campy shifter, since Campy sells FDs to handle any double or triple crank normally used on a road bike.
(2) Even with a Campy FD, if you route the shift cable incorrectly, it will shorten the effective lever arm length and cause the same excessive cable tension. Some people have installed the cable incorrectly on the 2009 Campy FD and had the same problem that you describe. The cable must be routed over the small metal tab on the lever arm, then over the clamp bolt. It the cable is routed between the metal tab and guide bolt, you get the shorter lever arm length and the FD will not operate correctly.