I have the same problem as described at
I have Rev.B board and the mods outlined in the above link appear to be in place: pins 4 and 5 of the USB connector are soldered together and USB connector case is connected to ground, just like on the pictures.
Yet, I get the same error that the original poster was getting:
If I click ok a bunch of times, I get a Communication Error:
What am I doing wrong?