--- ray/src/rt/devcomm.c	1989/05/25 19:33:21	1.2
+++ ray/src/rt/devcomm.c	1989/06/02 17:21:24	1.4
@@ -27,7 +27,7 @@ static char SCCSid[] = "$SunId$ LBL";
 #endif
 
 #ifndef WFLUSH
-#define WFLUSH		30		/* flush after this many rays */
+#define WFLUSH		50		/* flush after this many rays */
 #endif
 
 extern char	*getpath(), *getenv();
@@ -169,6 +169,7 @@ char	*str;
 {
 	putc(COM_COMOUT, devout);
 	myputs(str, devout);
+	fflush(devout);
 }