newbie question: xterm display for plot()

[John W. Eaton]

On 27-Feb-2008, Don Roberts wrote:

|     I'm running Octave under YDL on a PS3.  A few months ago I was able to =
|     access it and run plots fine by ssh from my iMac.  Executing a plot() =
|     poped open a new Xterm on the Mac and displayed the plot just fine.  Now =
|     when I open an xterm on the Mac and ssh into the PS3 (ssh -x -l ...) I =
|     can still run Octave just fine, put plot() results in=20
|             unable to open display '  '
|     I'm not sure if this is properly an Octave, Xterm, PS3, YDL, or Mac =
|     question so I'm hoping someone can at least point me in the right =
|     direction.  What step(s) have I forgotten?
|     thanx,

My ssh client uses -X to enable X11 forwarding and -x to disable it.

jwe