diff --git a/xvaga/xvaga.cpp b/xvaga/xvaga.cpp
index 70a414b52..8569fd830 100755
--- a/xvaga/xvaga.cpp
+++ b/xvaga/xvaga.cpp
@@ -3665,14 +3665,17 @@ long xvt_timer_create(WINDOW win, long interval)
 
 void xvt_timer_destroy(long id) 
 { 
-  CAST_TWIN(id, w);
-	wxTimer*& t = w._timer;
-	if (t != NULL)
-	{
-    t->Stop();
-		delete t;
-		t = NULL;
-	}
+  if (id > 0L)
+  {
+    CAST_TWIN(id, w);
+	  wxTimer*& t = w._timer;
+	  if (t != NULL)
+	  {
+      t->Stop();
+		  delete t;
+		  t = NULL;
+	  }
+  }
 }
 
 ///////////////////////////////////////////////////////////
@@ -3879,7 +3882,7 @@ void xvt_vobj_move(WINDOW win, RCT *rctp)
 { 
 	CAST_WIN(win, w); 
 	wxRect rct = NormalizeRCT(rctp);
-  w.Move(rctp->left, rctp->top);
+  w.Move(rct.x, rct.y);
 	w.SetClientSize(rct.width, rct.height);
 }