Prior to ArcGIS Desktop 10, the Java Configuration Tool allowed one to specify an alternate JVM (http://resources.esri.com/help/9.3/arcgisserver/adf/java/help/doc/5ea8aa1a-0b3e-46c1-8589-757bdc50d4d1.htm). In 10.1 that is no longer an option, as far as I can tell. I noticed that between 10.0 and 10.1 the JRE rolled back one update. I'm noticing some issues w/ a Java add-in I created that works fine in 10.0, and I would like to rule out the JVM change. Can I change the default JVM setting? Thanks in advance, cg.