When creating a solid object in Rhino 5,such as a sphere, and changing the view mode to render, the object is displayed with a turquoise color rather than the white matte that used to be the default. If I change the color or add a new texture it combines with the turquoise color rather than replacing it. If I open an old file, the turquoise color shows through on all solid objects and surfaces. If I open the same file on another computer running Rhino, the turquoise color is not there. I have tried reinstalling Rhino but the problem persists.