Hi, We have an anoying problem with the testing on faulks, using g77: Since Jully 31 (just after I did some changes in mom_fluxform), exp5 is giving NAN, but the testreport script gives plenty of 22 and concludes with a "pass". I am looking at this problem now (both the testreport and the Pb in the code / or compiler on faulks). Cheers, Jean-Michel