2 white screens in C310

[bachmama]

Hi guys,

Got the TDS 750 since yesterday as a replacement test for the PMS. In the C414 everything was fine, but in the C310 i only have 2 white screens. What I tried so far:

• Deleted and reinstalled Blackbird/Milviz C310
  
• Deleted and reinstalled Garmin Trainer and TDS Flightsim Software 2 times
  
• Made every EXE run as admin
  
• Turned of Windows Defender
  

I read somewhere in a thread from 2023, that there was a problem with the 310 and you had to delete the PMS Version, but that is not acceptable. I was hoping any incompatibility between the two should be cleared by any updates of the developers. 

Anyone having an idea, what’s the root cause for this problem?

Thanx for any hints!