In some displacement setting.... somehow c4d quits.
Try a scene... and this object is getting out of focus, its uv mapped and texture placed, any idea why its not focused...?
I tried new camera but nothing.
...
Ok, so where's the scene, if i may...;)
... or post the file, link to it & if not allowed, simply write down specifications of the displacement texture in question...
About that blur... what size is the texture?
Have you checked 'Sampling' & 'Blur' settings on it?