--- rxvt-unicode/src/screen.C	2011/11/01 00:04:46	1.395
+++ rxvt-unicode/src/screen.C	2011/11/15 20:09:13	1.405
@@ -684,19 +684,14 @@
         }
 
       // move and/or clear selection, if any
-      if (selection.op && current_screen == selection.screen)
+      if (selection.op && current_screen == selection.screen
+          && selection.beg.row <= row2)
         {
           selection.beg.row  -= count;
           selection.end.row  -= count;
           selection.mark.row -= count;
 
-          if (selection.beg.row < top_row
-              || selection.end.row < top_row
-              || selection.mark.row < top_row)
-            {
-              CLEAR_ALL_SELECTION ();
-              selection.op = SELECTION_CLEAR;
-            }
+          selection_check (0);
         }
 
       // finally move the view window, if desired
@@ -782,7 +777,7 @@
   if (len <= 0)               /* sanity */
     return;
 
-  unsigned char checksel;
+  bool checksel;
   unicode_t c;
   int ncol = this->ncol;
   const wchar_t *strend = str + len;
@@ -2049,7 +2044,7 @@
   refresh_count = 0;
 
   unsigned int old_screen_flags = screen.flags;
-  char have_bg = 0;
+  bool have_bg = 0;
 #ifdef HAVE_BG_PIXMAP
   have_bg = bg_pixmap != None;
 #endif
@@ -2065,13 +2060,13 @@
   scr_swap_overlay ();
 #endif
 
-  char showcursor = screen.flags & Screen_VisibleCursor;
+  bool showcursor = screen.flags & Screen_VisibleCursor;
 
   /*
    * C: set the cursor character (s)
    */
   {
-    unsigned char setoldcursor;
+    bool setoldcursor;
 
 #ifdef CURSOR_BLINK
     if (hidden_cursor)
@@ -2698,12 +2693,12 @@
 void
 rxvt_term::selection_check (int check_more) NOTHROW
 {
-  row_col_t pos;
-
   if (!selection.op)
     return;
 
+  row_col_t pos;
   pos.row = pos.col = 0;
+
   if (!IN_RANGE_EXC (selection.beg.row, top_row, nrow)
       || !IN_RANGE_EXC (selection.mark.row, top_row, nrow)
       || !IN_RANGE_EXC (selection.end.row, top_row, nrow)
@@ -2715,10 +2710,7 @@
           && ROWCOL_IS_BEFORE (selection.beg, pos)
           && ROWCOL_IS_AFTER (selection.end, pos))
       || (check_more == 3
-          && ROWCOL_IS_AFTER (selection.end, pos))
-      || (check_more == 4     /* screen width change */
-          && (selection.beg.row != selection.end.row
-              || selection.end.col > ncol)))
+          && ROWCOL_IS_AFTER (selection.end, pos)))
     CLEAR_ALL_SELECTION ();
 }