Technical Support wrote:
Contact customer service. It may be the light needs to be swapped, if the rubber cap is not aligning properly.
Thanks, but I don't think it is a problem with a given light. I have 4 DB800s and they all have the same issue. It's like the pins on the CSXCV are not long enough to seat properly in the plug hole because the rubber is just a bit too much. And... I called support they said they'd look into it and call back but I didn't hear anything so I opened this forum entry.
Tom