[R] wireframe: how to remove the frame around my plot?

[Alexis J. Diamond]

Hi,

I've got a wireframe 3D surface plot, but I don't want a frame around it.
Is there any way to remove the frame, or (worst case)
change the color of the frame to the background color (which looks like
grey).

I'm using ver 1.7.1

I've tried frame.plot = F, but that doesn't seem to work for 'wireframe'.

Many thanks,

Alexis Diamond