On Wed, 18 Aug 2010, Giancarlo Taroni wrote: What version/build of x12a and tramo are you using? Let's focus on x12a for now. I recommend http://sourceforge.net/projects/gretl/files/addons/x12arima-linux.tar.gz/... If I run the x12a binary from this package from the command line in a terminal window, with no arguments, I get: X-12-ARIMA Seasonal Adjustment Program Version Number 0.3 Build 188 PSP = 24 Execution began Aug 18, 2010 12.58.15 (plus an error message about needing some input) What do you get on Mint 64? Allin Cottrell