Dear helper, Sorry to interrupt to this installation procedure for questions, but it was definitely helpful to install horae-025 package. I'd like to report a problem in using artemis. I use RH 8.0 to install the package, following all your instructions. Log in as a normal user. (1) For Tk804.025_beta installation, xhost + localhost su export LANG=lang_us perl -MCPAN -e shell cpan>install Tk In the installation process, I encountered the following warnings: cc1: warning: changing search order for system directory "/usr/local/include" cc1: warning: as it has already been specified as a non-system directory But the installation was successful after all. (2) For horae-025 intallation, perl Makefile.PL make make intall I also encountered the same warnings as the above, but the installation seems ok. (3) in using artemis, here is the problem Typing "artemis" brought up a window, but in "import a Feff calculaton" window under menu-bar "File", I couldn't move to any directory where "feff.inp" is, causing the following error message: Tk::Error: Can't locate Tk/Unselect.pm in @INC (@INC contains:/usr/lib/perl5/5.8.0 /usr/lib/perl5/site_perl/5.8.0/i386-linux-thread-multi /usr/lib/perl5/site_perl/5.8.0 /usr/lib/perl5/site_perl /usr/lib/perl5/vendor_perl/5.8.0/i386-linux-thread-multi /usr/lib/perl5/vendor_perl/5.8.0 /usr/lib/perl5/vendor_perl /usr/lib/perl5/5.8.0/i386-linux-thread-multi /usr/lib/perl5/5.8.0 .) at /usr/lib/perl5/site_perl/5.8.0/i386-linux-thread-multi/Tk/Widget.pm line 270. Joon An From LBL.