I have a D-dock bay, which works fine with my Latitdue D410 (Windows 7), but I want to update the FX2 firmware from A01 to A04. I run delldbup.exe and it detects the dock and says it has updated successfully. However, after power cycle, the firmware stays at A01. I have tried running delldbup.exe from Windows 7 and from cmd prompt, and as administrator. I have tried all combinations of power cycle that I can think of (restart, shut down and start, with and without removing power cable). Every time the programme says it has run successfully, but the firmware stays resolutely at A01.