Question: logplot with gridlines in eps file

How can I get Maple 10 Standard Worksheet to plot with vertical logarithmic axis having the gridlines at 10,10, and so on, in a vector graphic file like eps?

If I try

with(plots):

plotsetup(ps,plotoptions=`colour=cmyk,landscape,noborder`);

        Warning, plotoutput file set to `postscript.eps`

logplot(eval(1/cosh(mu),x_=1),mu=0..10,1e-4..1,axes=framed,
gridlines=true,
labels=[mu,"A"],labeldirections=[horizontal,vertical],
title="The Title");

I get the right plot but without gridlines, and if I try

plot(eval(1/cosh(mu),x_=1),mu=0..10,1e-4..1,axes=framed,
axis[2]=[gridlines=[5,subticks=true,color=blue],mode=log],
labels=[mu,"A"],labeldirections=[horizontal,vertical],
title="The Title");

I get a postscript plot with linear axes, again without gridlines. All axis and gridlines options are ignored
With plotsetup(default) this plot appears right on screen but when I export it it is portrait and has bigger file size.

My workaround would be to fill in constant functions 10,10, etc. which produce the gridlines. But that makes it impossible to add a legend because the gridlines would appear there again.

Any help is appreciated.