diff --git a/drawconstraint.cpp b/drawconstraint.cpp
index b648288..a9b6c26 100644
--- a/drawconstraint.cpp
+++ b/drawconstraint.cpp
@@ -275,11 +275,11 @@ void Constraint::DoLineWithArrows(Vector ref, Vector a, Vector b,
         if(within > 0) LineDrawOrGetDistance(be, be.Plus(seg));
     }
 
-    LineDrawOrGetDistance(ae, ae.Plus(arrow.RotatedAbout(gn,  theta)));
-    LineDrawOrGetDistance(ae, ae.Plus(arrow.RotatedAbout(gn, -theta)));
+    LineDrawOrGetDistance(ae, ae.Plus(arrow.RotatedAbout(n,  theta)));
+    LineDrawOrGetDistance(ae, ae.Plus(arrow.RotatedAbout(n, -theta)));
     arrow = arrow.ScaledBy(-1);
-    LineDrawOrGetDistance(be, be.Plus(arrow.RotatedAbout(gn,  theta)));
-    LineDrawOrGetDistance(be, be.Plus(arrow.RotatedAbout(gn, -theta)));
+    LineDrawOrGetDistance(be, be.Plus(arrow.RotatedAbout(n,  theta)));
+    LineDrawOrGetDistance(be, be.Plus(arrow.RotatedAbout(n, -theta)));
 }
 
 void Constraint::DoEqualLenTicks(Vector a, Vector b, Vector gn) {
diff --git a/srf/curve.cpp b/srf/curve.cpp
index 698d1cd..058402a 100644
--- a/srf/curve.cpp
+++ b/srf/curve.cpp
@@ -674,10 +674,14 @@ void SBezierLoopSetSet::FindOuterFacesFrom(SBezierList *sbl, SPolygon *spxyz,
             loopsRemaining = true;
             loop->tag = USED_LOOP;
             outerAndInners.l.Add(loop);
+            int auxA = 0;
+            if(loop->l.n > 0) auxA = loop->l.elem[0].auxA;
 
             for(j = 0; j < sbls.l.n; j++) {
                 SBezierLoop *inner = &(sbls.l.elem[j]);
                 if(inner->tag != INNER_LOOP) continue;
+                if(inner->l.n < 1) continue;
+                if(inner->l.elem[0].auxA != auxA) continue;
 
                 Vector p = spuv.l.elem[j].AnyEdgeMidpoint();
                 if(spuv.l.elem[i].ContainsPointProjdToNormal(spuv.normal, p)) {
diff --git a/textwin.cpp b/textwin.cpp
index dd74877..ff223c4 100644
--- a/textwin.cpp
+++ b/textwin.cpp
@@ -480,6 +480,22 @@ void TextWindow::DescribeSelection(void) {
         Printf(true,  "     point " PT_AS_STR, COSTR(pp));
         Printf(true,  " pt-ln distance = %Fi%s%E",
             SS.MmToString(pp.DistanceToLine(lp0, lp1.Minus(lp0))));
+    } else if(gs.n == 2 && gs.vectors == 2) {
+        Printf(false, "%FtTWO VECTORS");
+
+        Vector v0 = SK.GetEntity(gs.entity[0])->VectorGetNum(),
+               v1 = SK.GetEntity(gs.entity[1])->VectorGetNum();
+        v0 = v0.WithMagnitude(1);
+        v1 = v1.WithMagnitude(1);
+
+        Printf(true,  "  vectorA = " PT_AS_NUM, CO(v0));
+        Printf(false, "  vectorB = " PT_AS_NUM, CO(v1));
+
+        double theta = acos(v0.Dot(v1));
+        Printf(true,  "    angle = %Fi%2%E degrees", theta*180/PI);
+        while(theta < PI/2) theta += PI;
+        while(theta > PI/2) theta -= PI; 
+        Printf(false, " or angle = %Fi%2%E (mod 180)", theta*180/PI);
     } else if(gs.n == 2 && gs.faces == 2) {
         Printf(false, "%FtTWO PLANE FACES");