[Paraview] InitializeTcl failed/no $DISPLAY environment variable errors (paraview on intel mac)

[Jared Hawkins]

to all,

hi.  im trying to run ParaView 2.6 on an intel mac pro running 10.4.  im 
VERY new to a unix environment, so please bear with me.

after downloading the paraview 2.6 intel precompiled binaries, i attempt 
to launch paraview from the console (using ./paraview in the /bin 
directory).

i immediately get this message:

    ParaView error: InitializeTcl failed
    TK_Init error: no display name and no $DISPLAY environment variable

i have tried running paraview on a powerpc g4 and i got the exact same 
error message, so im pretty sure its something really stupid that im 
messing up.

any suggestions???

thanks,
jared