--- fileio.c	Sun Jan  4 19:57:15 2004
+++ fileio.c	Thu Jun 17 19:33:26 2004
@@ -193,8 +193,8 @@
 	if (window_start + window_size > map->file_size) {
 		window_size = map->file_size - window_start;
 	}
-	if (offset + len > window_start + window_size) {
-		window_size = (offset+len) - window_start;
+	if (offset + 16 * len > window_start + window_size) {
+	window_size = (offset + 16 * len) - window_start;
 	}
 
 	/* make sure we have allocated enough memory for the window */