Can't see the negative sign



(At the office), I'm running the windows version of Maxima, and when I
solve simultaneous equations, the result is a new equation, and the
negative sign in front of the vinculum (division bar) is nearly
indistinguishable. Is there a setting that to increase the spacing
between the negative sign and the vinculum, something to make it stand
out just a wee bit more for my aging eyes?

 

(Before someone mentions it, I've done the set_display(none), to flatten
the equation.  I do rather prefer the pretty print, though, except for
this one bothersome quirk.)