[ns] Fwd: error when run aprogram what i do please?

Sat Apr 12 08:40:39 PDT 2008

mohamed saad <mohammed2742007 at yahoo.com> wrote: Date: Sat, 12 Apr 2008 08:37:07 -0700 (PDT)
From: mohamed saad <mohammed2742007 at yahoo.com>
Subject: Fwd: [ns] error when run aprogram what i do please?
To: nsusers <ns-users at isi.edu>

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From: mohamed saad <mohammed2742007 at yahoo.com>
To: nsusers <ns-users at ISI.EDU>
Subject: [ns] help me to solve this error please

salam alikom

when run aprogram by typing acommand
ns example1.tcl
it give me this error
"no display name and no $DISPLAY environment variable
can you help me what is this?and what i do to solve this error
note i run on mandrake10
gazak allah khiran

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