--- ray/src/rt/virtuals.c	1991/06/26 11:54:43	1.14
+++ ray/src/rt/virtuals.c	1991/06/26 14:26:52	1.15
@@ -19,7 +19,7 @@ static char SCCSid[] = "$SunId$ LBL";
 
 #include  "random.h"
 
-#define  MINSAMPLES	3		/* minimum number of pretest samples */
+#define  MINSAMPLES	5		/* minimum number of pretest samples */
 #define  STESTMAX	30		/* maximum seeks per sample */