plotdf not working in 0.8.5



Hi everybody,

I installed wxMaxima from the repository in Ubuntu Maverik and plotdf
is not working
This is the output (I get no plots)

load("plotdf")$
plotdf(exp(-x)+y,[trajectory_at,2,-0.1]);

%o1 127

Any idea what I am missing?

Thanks


-- 
M. Sc. Juan Pablo Carbajal
-----
PhD Student
University of Z?rich
www.ailab.ch/carbajal