Ok, I have followed instructions in this page:
updating it using the last release of Macaulay2, I have had a problem
with a missing DLL (I have downloaded all packaged listed in the page,
and also other similar packages, for example libreadlines9 to avoid
problem with version used by the last release that I have
The missing DLL is: cyglapack.dll.
After installing this package (lapack) M2 should works.
I report this problem only in the hope that it could be useful to
Thanks for you support
acaulay2, version 1.3.1
ith packages: ConwayPolynomials, Elimination, IntegralClosure,
PrimaryDecomposition, ReesAlgebra, SchurRings,