Greetings, I am running Windows Vista Ultimate and trying to build numpy from the SVN branch using MSVC 2003. I have been able to build previously, but with my latest SVN update I am no longer able to build. My CPU is an Intel Core2 T7600 @2.33GHz. The error is below. e:\svn\numpy\numpy\core\include\numpy\npy_cpu.h(44) : fatal error C1189: #error: Unknown CPU, please report this to numpy maintainers with information about your platform (OS, CPU and compiler) error: Command "D:\Program Files\Microsoft Visual Studio 2003\bin\cl.exe /c /nologo /Ox /MD /W3 /GX /DNDEBUG -Inumpy\core\include -Ibuild\src.win32-2.5\numpy\core\include/numpy -Inumpy\core\src -Inumpy\core\include -ID:\Python25\include -ID:\Python25\PC /Tcbuild\src.win32-2.5\numpy\core\src\_sortmodule.c /Fobuild\temp.win32-2.5\Release\build\src.win32-2.5\numpy\core\src\_sortmodule.obj" failed with exit status 2 -Patrick -- Patrick Marsh Graduate Research Assistant School of Meteorology University of Oklahoma http://www.patricktmarsh.com