Starting last week my ASI 2600 produced corrupt images. First happens only a few times. Now it happens all the time:

I have replaced all cables etc. ... I also own a second ASI 2600 MM (running a dual setup) ... No issues here with same computer and cables.
I have the issue with a Linux (indilib) and Windows with 4 different cables / power supply...
Can anybody help me?
Thanks Philip