Hello everyone!
after some mailing with the support team from CLUB3D and many changes to the pixelclock of the monitor
all the way from 538 to 593 i was still getting errors with 58-60hz and some firmware updates to the adapter..
the only way for me to be "problem-free" from these issues was to lower the HZ to 54.444 and the pixelclock to 539 - voila - all my problems were gone but i got a new problem - it was not running in 60hz...
So - i downloaded MonInfo after seeing someone else using to to find out their timings and if their monitor was able to do CVT-Reduced Blanking etc etc - i noticed it stating that my NATIVE pixel clock was 600mhz...
i did not put much weight to this as i thought it was just a Maximum possible reported pixelclock...
i later changed pixel clock to 600mhz, all the artifacts and the flickering was gone however i was no longer getting 4:4:4 chroma, i believe it to be because of the monitor working in 61hz and not 60hz per spec..
so - does anyone know a way to have 60hz and 600mhz pixelclock?