HELP needed with d.3d.and i.points

[Eliot Michael Cline]

Hi,

Is screen capture the only way to save the image produced by d.3d to a 
file? If so, what is the best program for doing this? (I am running GRASS 
under Linux)

When using the program i.points my images in 256 colors/greylevels seem 
to get pared down to 16 or some such amount. So much information is lost 
I can't effectively choose points to use with i.rectify. This is the case 
whether I am in fixed or float colormode. Is there a way around this?

Any help would be appreciated,

Eliot Cline