The attached patch fixes a bogus setting in the canned config.h file for Win64. The corresponding config_H.vc64 already has the correct value. With this change (and the previous message loop changes) I now get 100% success running the regression tests on Windows 2003 Server 64bit on AMD64. Cheers, -Jan --- win32/config.vc64.~1~ Tue Dec 20 19:50:01 2005 +++ win32/config.vc64 Tue Dec 20 19:50:01 2005 @@ -309,7 +309,7 @@ d_nanosleep='undef' d_nice='undef' d_nl_langinfo='undef' -d_nv_preserves_uv='define' +d_nv_preserves_uv='undef' d_nv_zero_is_allbits_zero='define' d_off64_t='undef' d_old_pthread_create_joinable='undef' End of Patch.Thread Next