The new version of wxMaxima looks nice. (I tried it on XP.)
Two things I noticed
(a) Functions with zero arguments do not look right---instead of
parenthesis, I see two fuzzy triangular blobs. The input matrix()
generates an error and halts maxima.
(b) Positional derivatives do not display correctly. Try
(%o1) load("pdiff");
(%o2) diff(f(x),x);
pderivop(f,1)(x)
This isn't wrong, but try the same with xmaxima to see the output
that is expected.
The new version of orthopoly isn't distributed with
Maxima---they don't display as intended either.
Barton