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[Teresa Hansen]

>I am trying to run grass4.0 on a SUN sparc IPX, and cannot
>get the graphics monitor work properly. It keeps giving me
>the following message:
>
>  GRASS 4.0 > d.mon start=x0
>  Graphics driver [x0] is already running
>  Error - Could not complete locking process for monitor <x0>.
>  Lock file is /applications/grass4.0/locks/dolphin/:0.0/x0
>  Problem selecting x0. Will try once more
>  ERROR - eof from graphics monitor.
>
>
>I wonder if any of you had this problem before. It would be greatly
>appreciated if anyone can give me a hint how to fix it.
>
>
>X. Shao


Yes, I have seen this before.  Go to the directory specified in the
error message (/applications/grass4.0/locks/dolphin/:0.0) and remove 
the x0 lock file using the unix "rm FILENAME" command.  Now you 
should be able to use the "d.mon start=x0" command.

I am not sure why this happens.  Sometimes I get this error when 
GRASS is exited abnormally.  

Teresa Hansen
Fort Lewis, WA