> It cannot be on a VAX - vaxen do not run Digital Unix (they run Ultrix). This > is on an Alpha. Okay. You've got a broken compilation environment that is fixed in later versions. (Works fine on Digital UNIX 4.0) Try replacing the value of the constant X_FLOAT_MAX in src/libsrc/ncx.h with the value of FLT_MAX from /usr/include/limits.h. (It should be close to the same value.) There may be a couple of other places where you have to do the same thing. nc_test and nf_test try to test out to the boundary value but don't share the private include file ncx.h. -glenn