slightly OT - user-specific postscript config files?

[Cameron Mura]

Hello,

apologies for this being slightly off-topic (I work in Fedora, so this 
list occurred to me as one place to ask the question...)

In a nutshell: I'm wondering if anyone could point me to useful 
resources that describe where user-specific Postscript 
information/customizations/etc. are stored on a standard, vanilla Fedora 
installation ?  I really do mean /user-specific/ (not global) 
preferences here, so I imagine the info/settings probably live somewhere 
in $HOME/, but my Linux/Fedora print config knowledge has become 
outdated and quite rusty... I tried some obvious things -- like blasting 
away the $HOME/.gtklp that exists if one has GtkLP installed (this is a 
GTK frontend to CUPS) -- but all this was to no avail, my page-scaling 
problem persists.  I've also searched extensively online for the info 
(queries like "linux postscript user customization file"), but still 
can't find anything.

A bit of backstory: Suddenly, any email I print from Thunderbird, by 
sending to the default print queue, ends up being scaled-down by a 
factor of ~0.8x, positioned flush-left and flush-bottom on the 
standard-sized (8.5"x11" letter) paper.  I learned the following from 
various troubleshooting efforts and tests:

   1. problem is not the printer itself -- e.g., a simplex queue on the
      same printer works fine (problem is I use duplex)
   2. problem is not Thunderbird-specific -- I initially thought I must
      have mung'd a t-bird setting in prefs.js or something like that,
      but turns out that's not the problem -- interestingly, this
      scaling problem does /not/ occur if I print a PDF file to the
      troublesome print queue, but it /does/ occur if I print a
      postscript file from any postscript-aware app (e.g. okular), which
      led me to conclude it's some generic postscript config problem...
   3. problem is not global, but rather is user-specific -- the scaling
      problem does not occur with another user account on the same machine

 From the above I deduced it's some user-specific Postscript weirdness, 
and was hoping this could be traced to something in $HOME, but for the 
life of me I can't get any further.... maybe I'm missing something 
obvious?!?

...any tips or pointers to online resources would be greatly appreciated!
thanks,
cam

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