I am having problems opening Athena. Reading the iffefit mailing list I found a similar problem posted by Roberto Rodriguez on 29 May 2013. I tried to delete the .mru file. but still I have same problem dathena.log says: Failed to load YAML document from 'C:\Users\Sof\AppData\Roaming\demeter\athena.cwd' at C:/strawberry/perl/vendor/lib/YAML/Tiny.pm line 593 YAML::Tiny::LoadFile('C:\Users\Sof\AppData\Roaming\demeter\athena.cwd') called at C:/strawberry/perl/site/lib/Demeter/UI/Athena.pm line 81 Demeter::UI::Athena::OnInit('Demeter::UI::Athena=HASH(0x270eb0c)') called at C:/strawberry/perl/site/lib/Wx/App.pm line 36 eval {...} called at C:/strawberry/perl/site/lib/Wx/App.pm line 36 Wx::App::new('Demeter::UI::Athena') called at C:\strawberry\perl\site\bin\dathena.bat line 57 I will appreciate any help. Sorry if the issue is already solved in the mailing list, but I did not find it Ulises