Poor Graphics in Robot 2021

[GGB.BHB]

Hi 

I have just updated my version of Robot to 2021 as I needed to open a model created by a colleague in that version.  However now that I have opened the model (in repair mode) there is an issue with the graphics.  As I move the mouse around the view window the image goes all ghostly - see attachment.  The correct view pops up occasionally but I can't get it to stay for long. I couldn't even take a screen shot of the proper view! 

Do you have any suggestions as to what the issue might be and how to resolve it? 

Many thanks

[Rafacascudo · Accepted solution]

Check Tools/preferences/View parameters.

Default setting is opengl marked and 25% display acceleration

[GGB.BHB]

Thank you.  Changed the display acceleration to 'None' and problems solved 🙂