Welcome to the structure-software forum. This discussion group provides an online source of information about the program structure, for analysis of population genetic data. The software and further information, as well as links to the original publications, can be found at the structure website: http://pritch.bsd.uchicago.edu/structure.html
Please try to use informative subject lines for queries/comments! For bug reports please include as much information as possible including any error messages, the operating system, Structure version number, and whether you are using the graphical interface.