Hi, the attached script files demonstrate a bug. Please run the bugtest_driver.inp script which includes the other script port_bugtest.inp. The example uses the built-in example dataset abdata. The point is that the top-level series "e" which is passed as a pointer arg to the function (factcoint_test) gets a spurious and more or less arbitrary description string, sometimes including non-printable characters. Actually sometimes the correct description happens; in that case please just run the script again. To trigger the bug it seems necessary to have an enclosing loop. In itself it's not a big deal, but since apparently chunks of memory end up where they do not belong, maybe some related unknown bugs exist and may be fixed by getting this straight. This is a fairly recent snapshot. thanks sven