[GRASSLIST:6012] How does one .. vector overlay/transparency

[Pete Lancashire]

I'm creating a map of wind power for the the state of calif.

d.vect -a map=wind_ca type=area display=shape

so far so good (except I can't get rid if the border line)

The last step I want to do is place political (state and
county) borders on the map.

I imported a shp of US state borders, but when I use it

d.vect map=states

it's areas are "filled", if I display this first, the data
from wind_ca covers most of the border.

what can i do ? 

thanks

-pete