--- Begin Traceback --- Can't call method "command" on an undefined value at GQ/Client/GenomeMapper.pm line 267, <PLUG> line 5. GQ::Client::GenomeMapper::renameFlag at GQ/Client/GenomeMapper.pm line 267 GQ::Client::GenomeMapper::__ANON__ at GQ/Client/GenomeMapper.pm line 211 [\&GQ::Client::GenomeMapper::__ANON__] Tk callback for .toplevel.toplevel.menu Tk::__ANON__ at /usr/local/lib/perl5/site_perl/5.6.1/i686-linux/Tk.pm line 228 Tk::Menu::Invoke at /usr/local/lib/perl5/site_perl/5.6.1/i686-linux/Tk/Menu.pm line 530 (command bound to event) Trying to change flags from 'dblock' to 'kinase' gives this error. ??? Dave