Atik16200 increased ADU values

I just acquired a Atik16200 camera. When I take a preview (with the telescope covered) at 1s or 0,02s I get an image with a mean ADU of roundabout 30000.
The histogram shows a narrow peak at the middle of the base line.
More images cause the ADU to vary a bit, but all have this high ADU.
Under Atik’s own Artemis capture software it functions correctly.
With CCDCiel, which uses the same ascom driver, it performs ok too.
So the power and USB are alright.
It is only with SGP that I see this occurring.
When I re-install an older version of SGP it works ok again for a while…
Has anybody have a similar experience?

I think I have it solved.

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