Index: src/search.c
===================================================================
--- src/search.c	(revision 5172)
+++ src/search.c	(working copy)
@@ -704,12 +704,13 @@
 	 * partition, turn the mark off, and refresh the screen. */
 	mark_order((const filestruct **)&top, &top_x,
 	    (const filestruct **)&bot, &bot_x, &right_side_up);
-	filepart = partition_filestruct(top, top_x, bot, bot_x);
-	openfile->edittop = openfile->fileage;
 	openfile->mark_set = FALSE;
 #ifndef DISABLE_COLOR
 	reset_multis(openfile->current, TRUE);
 #endif
+	openfile->current = top;  
+	openfile->current_x = (top_x == 0 ? 0 : top_x - 1);  
+
 	edit_refresh();
     }
 #endif /* !NANO_TINY */
@@ -734,6 +735,16 @@
 	, real_current, *real_current_x, needle, &match_len)) {
 	int i = 0;
 
+#ifndef NANO_TINY  
+	if (old_mark_set && (openfile->current->lineno > bot->lineno ||
+				openfile->current->lineno < top->lineno))  
+		break;	
+	if (old_mark_set && openfile->current == bot && openfile->current_x > *real_current_x)  
+		break;	
+	if (old_mark_set && openfile->current == top && openfile->current_x < top_x)  
+		break;	
+#endif	
+
 #ifdef HAVE_REGEX_H
 	/* If the bol_or_eol flag is set, we've found a match on the
 	 * beginning line already, and we're still on the beginning line
@@ -794,7 +805,7 @@
 	    size_t length_change;
 
 #ifndef NANO_TINY
-	    update_undo(REPLACE);
+	    add_undo(REPLACE);
 #endif
 	    if (i == 2)
 		replaceall = TRUE;
@@ -874,7 +885,6 @@
 	/* If the mark was on, unpartition the filestruct so that it
 	 * contains all the text again, set edittop back to what it was
 	 * before, turn the mark back on, and refresh the screen. */
-	unpartition_filestruct(&filepart);
 	openfile->edittop = edittop_save;
 	openfile->mark_set = TRUE;
     }