Hi! I have installed SciPy 0.5.2 for Python 2.5 on several Windows computers, using the precompiled binary scipy-0.5.2.win32-py2.5.exe. This works fine on some, but on others it crashes Python with an Illegal Instruction exception. The crash is easy to find by running the test() suite or by attempting to make any use of scipy.integrate.quad. Digging into it, I see that the exception comes from _quadpack.pyd, and it dies at a MOVSD instruction. I believe MOVSD is an SSE2 instruction that is only implemented on the more recent CPUs from both Intel and AMD. Has anyone out there compiled win32 binaries for Python 2.5 and older CPUs without SSE2? If so, could I beg for a copy? If not, I'll dig into getting set up to compile SciPy myself. Thanks, -- Jonathan Griffitts AnyWare Engineering Boulder, CO, USA