odd bash error

[someguy]

/usr/X11R6/bin/xterm Xt error: Can't open display: %s
i also got something simalar(sp?) when trying to run vlc
any help would be appreciated being as i can open a terminal
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print pack"C*",split/\D+/,`echo "16iII*o\U@{$/=$z;[(pop,pop,unpack"H*",<>
)]}\EsMsKsN0[lN*1lK[d2%Sa2/d0<X+d*lMLa^*lN%0]dsXx++lMlN/dsM0<J]dsJxp"|dc`
while [ 1 ] ; do echo "*" | telnet ip.of.print.er 9100 ; done