Thanks Renato. But what I&#39;m trying to do is use the &quot;Script&quot; in Setup to make QjackCtl automatically load a certain preset without me having to do it. The reason I want to do this is because: 1) I have QjackCtl set to start automatically on system startup and I also have QjackCtl set to &quot;start jack server&quot; straight away when loaded. At the moment it automatically loads the last preset used, so if I&#39;ve been using &quot;firewire&quot; and then I shut my computer down, when I start it again QjackCtl loads automatically and tries to load the &quot;firewire&quot; driver/preset even when the firewire isn&#39;t connected, so I get loads of error messages. And 2) whilst studying the options in QjackCtl (I&#39;m new to Linux audio and excited) I noticed that there seems to be the facility to make it load specified presets automatically and I wanted to try it, but it doesn&#39;t seem to work and I don&#39;t know if I&#39;m getting the &quot;meta-symbol arguments&quot; right (I&#39;m totally new to them).<br>
<br>This relates to an earlier request/thread I made in LAU. It&#39;s not a big deal if I can&#39;t do this as it just means I need to always remember to manually switch QjackCtl to my &quot;alsa&quot; preset whenever I turn my firewire device off so that it doesn&#39;t ever try and load &quot;firewire&quot; when the device isn&#39;t there, like you said. I just hate error messages and I like automation - some kind of Obsessive Compulsive thing I have maybe ;). It just seems like QjackCtl offers an easy solution to my problem and I&#39;m not using it right.<br>
<br>-Dan<br>