diff -r f54aca534513 netbinox/src/org/netbeans/modules/netbinox/NetbinoxFactory.java
--- a/netbinox/src/org/netbeans/modules/netbinox/NetbinoxFactory.java	Tue May 29 12:40:22 2012 +0200
+++ b/netbinox/src/org/netbeans/modules/netbinox/NetbinoxFactory.java	Tue May 29 15:36:26 2012 +0200
@@ -127,6 +127,9 @@
                     LOG.log(Level.FINE, "Skipping non-existent {0}", c);
                     continue;
                 }
+try {
+  c = cf.getCanonicalPath();
+} catch (java.io.IOException ex) { ex.printStackTrace(); }                
                 int prefix = findCommonPrefix(ia, c);
                 if (prefix == ia.length()) {
                     LOG.log(Level.FINE, "No change to prefix by {0}", c);