The units get thoroughly tested by the manufacturers; this includes PCB level tests, an automated functional test rig, and a soak test.

It's unusual for anything to slip through, but the manufacturers sometimes seem to go all clueless on us. I should be able to get the full test log over our network connection to the manufacturer's systems if I have the serial number of the unit.

Until then, though: can you see if you can apply the version 1 upgrade file to the unit? Unfortunately, if you were one of those who got sent a dud serial cable (there is an area on the plug moulding with either straight lines or a crosshatch pattern: straight lines is ok, crosshatch is from the dud batch - well, the proper cables will also have a crosshatch, but none of these have gone out yet) then upgrading the unit might be tough :(

Hugo