CC-Compilor instead of cc

Tue Jan 16 07:00:00 EST 1996

Hi,
I am installing Grass4.1 (linux version) into my PC.
I have some problems. Hope that someone can help me.
when I tried to run d.mon select=x0, I got
  Error- Could not complete locking process for monitor <x0>.
  Lock file is /usr/grass/locks/Moma/mon.aa6512

What should I do?
Where Moma stands for my PC domain.
 Thanks for your help.

C.C. Chiang
Farmlab
U. of Illinois at Urbana-Champaign
E-mail: chiang at farml1.agecon.uiuc.edu