When rotating/model, Background objects in Rhino Fades In/out

while im rotating or modeling in rhino, background objects fades in and out. Like some parts of the background objects seem to be cut off

is this a video card setting?

Hi Vyan28,

It could indeed be a video card issue, what type of card do you have, what Rhino version and SR and what OS? Gan you post a screenshot of the page found via Rhino Options -> View -> OpenGL
like this example: