diff -up nmap-6.25/zenmap/zenmapGUI/App.py.displayerror nmap-6.25/zenmap/zenmapGUI/App.py

--- nmap-6.25/zenmap/zenmapGUI/App.py.displayerror	2013-05-23 15:11:46.595569883 +0200

+++ nmap-6.25/zenmap/zenmapGUI/App.py	2013-05-23 15:12:44.786049525 +0200

@@ -116,7 +116,12 @@ except Exception:

     # startup scripts, and for some reason the first connection (the one that

     # caused the launch) is rejected. But somehow subsequent connections work

     # fine! So if the import fails, try one more time.

-    import gtk

+    try:

+        import gtk

+    except Exception, e:

+        print >> sys.stderr, 'Error:', str(e)

+        sys.exit(1)

+

 warnings.resetwarnings()

 from zenmapGUI.higwidgets.higdialogs import HIGAlertDialog