Dear Bruce, today I found a serious problem with Athena on my computer: I cannot open any data files. If I use standard open command, nothing happens, only the following message appears: Tk::Error: can't call method "writeConfig" on an undefined value at athena line 21584 Any ideas what to do? I already reinstalled iffefit ifeffit-1.2.10.exe http://prdownloads.sourceforge.net/ifeffit/ifeffit-1.2.10.exe?download on my windows XP system Athena can still open old projects, but no individual data files thanks for help in advance best regards Iztok -- Iztok Arcon University of Nova Gorica Vipavska 13, POB 301 5001 Nova Gorica, Slovenia tel: +386 5 331 5227 fax: +386 5 331 5240 e-mail: iztok.arcon@p-ng.si http://www.p-ng.si/~arcon http://www.p-ng.si/~arcon/xas