Hi Paul, this is exactly what I did: 1) starting with the same Ifeffit 1.2.7 and horae-058 working properly 2) removed the ifeffit installer receipt from the /Libray/Receipts folder 3) did NOT remove the previous /Applications/Ifeffit folder 4) downloaded the installer package for 10.4 from sourceforge 5) run the installer 6) run athena either from the command line or clicking on the icon. 7) I obtain the following message: stefano% athena Can't load '/Library/Perl/5.8.6/darwin-thread-multi-2level/auto/Ifeffit/Ifeffit.bundle' for module Ifeffit: dlopen(/Library/Perl/5.8.6/darwin-thread-multi-2level/auto/Ifeffit/Ifeffit.bundle, 1): Library not loaded: /Library/Frameworks/AquaTerm.framework/Versions/A/AquaTerm Referenced from: /Library/Perl/5.8.6/darwin-thread-multi-2level/auto/Ifeffit/Ifeffit.bundle Reason: image not found at /System/Library/Perl/5.8.6/darwin-thread-multi-2level/DynaLoader.pm line 230. at /Applications/Ifeffit/bin/athena line 54 Compilation failed in require at /Applications/Ifeffit/bin/athena line 54. BEGIN failed--compilation aborted at /Applications/Ifeffit/bin/athena line 58. Something is still wrong, I think, or maybe I did something wrong <:-| Stefano -- ____________________________________________ Stefano Ciurli Professor of Chemistry Laboratory of Bioinorganic Chemistry Department of Agro-Environmental Science and Technology University of Bologna Viale Giuseppe Fanin, 40 I-40127 Bologna Italy Phone: +39-051-209-6204 Fax: +39-051-209-6203 "Fatti non foste a viver come bruti, ma per seguir virtute e canoscenza" Dante Alighieri - Inferno - Canto XXVI "Ihr seid bestimmt, nicht Tieren gleich zu leben, Nein, Tugend zu erringen und Erkenntnis" "Ye were not form'd to live the life of brutes, But virtue to pursue and knowledge high"