Hello, I am writing to report a crash of Athena 0.9.18 running on Ubuntu 12.04 as a virtual machine. The terminal output is below. Let me know if I can provide any additional information. Thanks, George parallels@parallels-Parallels-Virtual-Platform:~$ dathena Attribute (bkg_nor1) does not pass the type constraint because: Validation failed for 'Num' with value 15. at accessor Demeter::Data::bkg_nor1 (defined at /home/parallels/perl5/lib/perl5/x86_64-linux-gnu-thread-multi/Demeter/Data.pm line 264) line 12, <F> line 1. Demeter::Data::bkg_nor1(Demeter::Data=HASH(0xd26a1b0), 15.) called at /home/parallels/perl5/lib/perl5/x86_64-linux-gnu-thread-multi/Demeter/UI/Athena/Main.pm line 843 Demeter::UI::Athena::Main::OnParameter(Demeter::UI::Athena::Main=HASH(0xaf7f780), Wx::CommandEvent=SCALAR(0xc130520), Demeter::UI::Athena=HASH(0x186fad0), "bkg_nor1") called at /home/parallels/perl5/lib/perl5/x86_64-linux-gnu-thread-multi/Demeter/UI/Athena/Main.pm line 341 Demeter::UI::Athena::Main::__ANON__(Demeter::UI::Athena::Main=HASH(0xaf7f780), Wx::CommandEvent=SCALAR(0xc130520)) called at /home/parallels/perl5/bin/dathena line 47 eval {...} called at /home/parallels/perl5/bin/dathena line 47 parallels@parallels-Parallels-Virtual-Platform:~$