For Pan 0.90 or newer (the versions released in 2006): * If you have an old copy of Pan 0.14.x installed already, uninstall it and GTK 2.2. * On Windows 2000 or newer, install gtk+-2.8.x-setup.zip before running Pan. * On Windows 98/ME, install gtk+-2.6.10-20060823-setup.zip before running Pan. For Pan 0.14.x or older: * Be aware that these versions of Pan are over three years old and are no longer supported. * Install GTK-Runtime-Environment-2.2.4.1.exe before running the Pan installer. Thanks: The GTK 2.8 installer was packaged by Jernej Simoncic and is mirrored from http://sourceforge.net/project/showfiles.php?group_id=121075 . The GTK 2.2 installer was packaged by Todd Kulesza and is mirrored from http://www.dropline.net/gtk/ .