Cubase 11 display issues

When starting Cubase 11.41 on PC (W10 64b, i7 9750h, 64GB ram) (and only this application), the screen appears showing lines and symbols such as depicted on the screenshot, those symbols change when clicking.
Has this already happened to anyone, or has anyone an idea how to solve this ?
Thank you & have a good day !

Hi and welcome to the forum,

This is not Cubase issue at all. This is on the graphic card.

Please, try to follow this thread.

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Thank you Martin ! Sorry for creating yet another thread
Have a good day !