Index: app/src/processing/app/linux/Platform.java
===================================================================
--- app/src/processing/app/linux/Platform.java	(revision 5766)
+++ app/src/processing/app/linux/Platform.java	(working copy)
@@ -67,6 +67,16 @@
       return true;
     }
 
+    // Attempt to use xdg-open (freedesktop way 
+    // (should work on KDE, GNOME and maybe others))
+    try {
+      Process p = Runtime.getRuntime().exec(new String[] { "xdg-open" });
+      /*int result =*/ p.waitFor();
+      // Not installed will throw an IOException (JDK 1.4.2, Ubuntu 7.04)
+      Preferences.set("launcher", "xdg-open");
+      return true;
+    } catch (Exception e) { }
+
     // Attempt to use gnome-open
     try {
       Process p = Runtime.getRuntime().exec(new String[] { "gnome-open" });