Allin,<br><br>I used Tramo before and I had no problems. Making new tests I get the message:<br><br><div style="margin-left: 40px;">Couldn&#39;t open /Users/henrique/.gretl/tramo/graph/series/safin.t<br></div><br>I&#39;m also testing with Gretl for Windows and the same message appears, so I think the problem isn&#39;t a Mac OS specific problem. Additionally I&#39;m testing X-12-Arima and I&#39;m getting the following error message:<br>

<br><div style="margin-left: 40px;">Failed to execute child process &quot;x2a&quot; (No such file or directory)<br>Failed to open file &#39;/Users/henrique/.gretl/x12arima/PAU.err&#39;: No such file or directory<br></div>

<br>I&#39;m using the sample file &quot;australia.gdt&quot; for testing Tramo and X-12-Arima. My Mac OS version is 10.5.7 (Leopard/Intel) and my Windows version is XP (with service pack 2).<br><br>Best,<br>Henrique<br><br>