diff U3 C:/Temp/insight-weekly-CVS-7.0.50-20091130/src/tk/generic/tkWindow.c C:/Temp/insight-patched/src/tk/generic/tkWindow.c
--- C:/Temp/insight-weekly-CVS-7.0.50-20091130/src/tk/generic/tkWindow.c	Tue Jan 21 22:24:46 2003
+++ C:/Temp/insight-patched/src/tk/generic/tkWindow.c	Wed May 25 09:44:50 2011
@@ -450,6 +450,11 @@
     if ((*p == '.') && (p[1] != '\0')) {
 	length = p - screenName;
 	screenId = strtoul(p+1, (char **) NULL, 10);
+    } else
+          /* Cover the "xxx.xxx.xxx.xxx:0." case */
+          if ((*p == '.') && (p[1] == '\0')) {
+	      length = p - screenName;
+	      screenId = 0;
     }
 
     /*