diff --git a/ChangeLog b/ChangeLog
index 266ce07..25b754b 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,5 @@
+- screen clipping of gfx_AddUpdateRect
+
 - draw_field, draw_player and restore player function fixed,
   problems with position on the field is greater as the 
   fieldsize. (SDL BadValue)
diff --git a/configure.in b/configure.in
index ad053fd..7fcd5e9 100644
--- a/configure.in
+++ b/configure.in
@@ -86,7 +86,7 @@ fi
 
 dnl Set PACKAGE DATA & DOC DIR
 packagedatadir=share/${PACKAGE}
-packagedocdir=doc/${PACKAGE}
+packagedocdir=share/doc/${PACKAGE}
 
 dnl Set PACKAGE DIRS in config.h.
 packagepixmapsdir=${packagedatadir}/pixmaps
diff --git a/src/gfx.c b/src/gfx.c
index 22007ea..c681fa6 100644
--- a/src/gfx.c
+++ b/src/gfx.c
@@ -1,4 +1,4 @@
-/* $Id: gfx.c,v 1.21 2003/06/16 21:03:16 stpohle Exp $ */
+/* $Id: gfx.c,v 1.22 2003/06/20 22:59:21 stpohle Exp $ */
 /* gfx.c */
 
 #include <SDL.h>
@@ -595,12 +595,33 @@ gfx_shutdown ()
 void
 gfx_AddUpdateRect (int x, int y, int w, int h)
 {
+	/* clipping of the box */
+	if (x >= gfx.res.x || y >= gfx.res.y || y+h <= 0 || x+w <= 0)
+		return;
+	
     if (UpdateRects_nr >= MAX_UPDATERECTS)
         return;
-    UpdateRects[UpdateRects_nr].x = x;
-    UpdateRects[UpdateRects_nr].y = y;
-    UpdateRects[UpdateRects_nr].w = w;
-    UpdateRects[UpdateRects_nr].h = h;
+	
+	if (x < 0)
+		UpdateRects[UpdateRects_nr].x = 0;
+	else
+		UpdateRects[UpdateRects_nr].x = x;
+	
+	if (y < 0)
+		UpdateRects[UpdateRects_nr].y = 0;
+	else
+		UpdateRects[UpdateRects_nr].y = y;
+	
+	if (w+x >= gfx.res.x)
+		UpdateRects[UpdateRects_nr].w = gfx.res.x - x;
+	else
+		UpdateRects[UpdateRects_nr].w = w;
+	
+	if (h+y >= gfx.res.y)
+		UpdateRects[UpdateRects_nr].h = gfx.res.y - y;
+	else
+		UpdateRects[UpdateRects_nr].h = h;
+	
     UpdateRects_nr++;
 };