[logback-user] Groovy Configuration

Hi, I'm having a play with the Groovy Configuration (in 0.9.23), but can't see how you're supposed to tell your program to use the Groovy configuration file. In normal circumstances, I'd use Joran to load a given XML file, but can't see what the equivalent would be for Groovy. I tried just executing the Groovy script (using the Java 1.6 script engine system) but just get a groovy.lang.MissingMethodException when it tries to execute the appender line (I'm using the first example script on the Groovy Configuration page). Am I missing something obvious here? The Groovy version is 1.7.1. Cheers Lance