Index: generic/nsf.c
===================================================================
diff -u -rb4c1e40335b8210a65b8a7a560d7d69a38febbbd -r618e2ee5017eb139591870f9f521b971bb16bbc2
--- generic/nsf.c	(.../nsf.c)	(revision b4c1e40335b8210a65b8a7a560d7d69a38febbbd)
+++ generic/nsf.c	(.../nsf.c)	(revision 618e2ee5017eb139591870f9f521b971bb16bbc2)
@@ -10382,9 +10382,9 @@
   CONST char *methodName = MethodName(methodObj);
 
   /*fprintf(stderr, "compare unknownObj %p with methodObj %p '%s' %p %p %s -- %s\n",
-    unknownObj, methodObj, ObjStr(methodObj), delegator,
-    delegator?objv[1]:NULL,
-    delegator?ObjStr(objv[1]) : NULL,
+    unknownObj, methodObj, ObjStr(methodObj), callInfoObj,
+    callInfoObj?objv[1]:NULL,
+    callInfoObj?ObjStr(objv[1]) : NULL,
     methodName);*/
   
   if (unknownObj && methodObj != unknownObj && (flags & NSF_CSC_CALL_NO_UNKNOWN) == 0) {
@@ -10424,9 +10424,8 @@
   } else { /* no unknown called, this is the built-in unknown handler */
     Tcl_Obj *tailMethodObj = NULL;
 
-    if (objc > 1) {
+    if (objc > 1 && ((*methodName) == '-' || (unknownObj && objv[0] == unknownObj))) {
       int length;
-
       if (Tcl_ListObjLength(interp, objv[1], &length) == TCL_OK && length > 0) {
 	Tcl_ListObjIndex(interp, objv[1], length - 1, &tailMethodObj);
       }
@@ -15628,7 +15627,7 @@
   if (result != TCL_OK) {
     Tcl_Obj *res =  Tcl_DuplicateObj(Tcl_GetObjResult(interp)); /* save the result */
     INCR_REF_COUNT(res);
-    NsfPrintError(interp, "%s during '%s.%s", ObjStr(res), ObjectName(object), methodName);
+    NsfPrintError(interp, "%s during '%s.%s'", ObjStr(res), ObjectName(object), methodName);
     DECR_REF_COUNT(res);
   }
 
Index: tests/parameters.test
===================================================================
diff -u -r9a0b8bb0992be0561d8187c275fc1d9b7e0bbcd0 -r618e2ee5017eb139591870f9f521b971bb16bbc2
--- tests/parameters.test	(.../parameters.test)	(revision 9a0b8bb0992be0561d8187c275fc1d9b7e0bbcd0)
+++ tests/parameters.test	(.../parameters.test)	(revision 618e2ee5017eb139591870f9f521b971bb16bbc2)
@@ -2292,4 +2292,17 @@
   
   C setObjectParams {-second:alias {-first "X"}}
   ? {[C new -second Y] eval {set :first}} Y "side-effect determines value"
-}
\ No newline at end of file
+}
+
+nx::Test case xotcl-configure-method {
+  nx::Test parameter count 1
+
+  package prefer latest
+  package req XOTcl 2.0
+
+  #
+  # attempt dispatch to unknown method
+  #
+  xotcl::Object create o
+  ? {o configure -order 15} "::o: unable to dispatch method 'order' during '::o.order'"
+}