diff -r e0dcf5b0e1b1 -r ecd51650d5d8 QTfrontend/net/hwmap.cpp
--- a/QTfrontend/net/hwmap.cpp	Mon Dec 24 16:23:55 2012 +0100
+++ b/QTfrontend/net/hwmap.cpp	Mon Dec 24 17:07:12 2012 +0100
@@ -47,9 +47,12 @@
 QStringList HWMap::getArguments()
 {
     QStringList arguments;
-    arguments << cfgdir->absolutePath();
+    arguments << "--internal";
+    arguments << "--port";
     arguments << QString("%1").arg(ipc_port);
-    arguments << "landpreview";
+    arguments << "--user-prefix";
+    arguments << cfgdir->absolutePath();
+    arguments << "--landpreview";
     return arguments;
 }