note vagabonding electron I have good news and bad news now :-)<br>The good news is that after searching at PerlMonks again and studying e.g. [id://931683] and [id://772468] and after that [http://docs.activestate.com/activeperl/5.12/faq/ActivePerl-faq2.html#ppmx_files] - since there are ppd- and ppmx-files - I was able at last to install extra modules in my ActivePerl distribution at work without administrator authority and without communication with the IT department.<br>This is really good news since this extends my options in programming (and - first of all - learning) Perl.<p>Now the bad news. I installed Chart::Gnuplot and faced the same problems which were already described at [id://721599]. Since my script runs ok now - thanks to you guys - I am going to keep using / developing it at least by now.</p>VE 930814 931785