the color setting of my grass environment/program

===========================================================================
    Elwin Koster
  University of Groningen
  Architectural History
  contact me by:
  email - ekoster@let.rug.nl
  phone - (+31) 50 636096
  mail - PO Box 716
    9700 AS Groningen
    the Netherlands

X-Mailer: ELM [version 2.3 PL11]

Oke, now its time for a silly question.
I have worked the last months with an awfull display where the Grass-program
has different colors.
e.g. grass has a white-background, but when I start a terminal all colors
become purple, exept for the working-screen.
Is there any possibility to change this colors ?
I could not find anything in the grass-functions (or is it a unix-function I
have to use ?).

Thanks for helping me out.
Elwin Koster