I just produced a plot with a curve dashed line:
when saving it into a png file it works fine.
But when saving it in a postscript the dashed line looks solid on most
of the plot.
This happens if there are too many points in the line:
x = arange(0,1.,0.0001)
y = sqrt(x)
## Png file is ok
## Eps file is NOT ok
Any cure to that behaviour?