--- xlwtabs.c~	Wed Dec 29 10:58:27 1999
+++ xlwtabs.c	Fri Jan 14 13:53:16 2000
@@ -1307,7 +1307,7 @@
 
 	if( XtIsRealized(t) && w != tw->tabs.hilight )
 	{
-	  if( tw->tabs.hilight != NULL )
+	  if( tw->tabs.hilight != NULL && XtIsRealized (tw->tabs.hilight))
 	    DrawHighlight(tw, tw->tabs.hilight, True) ;
 	  if( w != NULL )
 	    DrawHighlight(tw, w, False) ;