diff -r 55539c550c33 -r 878aa4c92424 QTfrontend/ui/page/pagenetserver.cpp
--- a/QTfrontend/ui/page/pagenetserver.cpp	Sun Mar 17 19:57:52 2013 +0100
+++ b/QTfrontend/ui/page/pagenetserver.cpp	Sun Mar 17 20:43:33 2013 +0100
@@ -60,7 +60,7 @@
     gbLayout->addWidget(labelPort, 1, 0);
 
     sbPort = new QSpinBox(gb);
-    sbPort->setMinimum(0);
+    sbPort->setMinimum(1024);
     sbPort->setMaximum(65535);
     gbLayout->addWidget(sbPort, 1, 1);