Hello,
I got often very similar errors when executing octave on a Linux server with
a remote display based on a X11 server under Windows 7.
When both computers are on the same LAN (100 Mbit/s Ethernet), I never see
any error.
When doing the same plots with the windows PC at home connected to the
server via a VPN over an ADSL link, most of the plots are producing errors
like this one (IM is a 120x682 matrix):
octave:2> surf(IM);
octave:3>
gnuplot> nset view;
^ line 0: invalid command
If I generate a PNG file instead of a display, it works. This is really
linked to the use of the X11 display.
I don't think that this is a problem on the octave side because I have
similar errors and strange behaviours using gnuplot scripts written
manually. The scripts generate correct display on the LAN and fail or
generate garbage display over the VPN.
I am using octave 3.6.4 (compiled from sources) and gnuplot 4.2 patchlevel 6
(Fedora 13 standard package).
Marc