diff --git a/tecs/six.c b/tecs/six.c
index 4233443a..fc075447 100644
--- a/tecs/six.c
+++ b/tecs/six.c
@@ -49,18 +49,25 @@ int CocCreateSockAdr(
 int readWrite(int fd, int skip) {
   char msg[128];
   int l, i, go, iret, ires, n;
-
+/*
+ * read from fd and write to stdout until a key pressed,
+ * a timeout occured (1 or 5 sec.), or a <go ahead> message
+ * received.
+ * skip=0: timeout 1 sec (normal behaviour)
+ * skip>0: timeout 5 sec.
+ * skip>1: swallow text
+ * skip=1,2: return 0 if SICS not found in message text
+ * skip=3: return 0 if not acknowledged
+ */
   n=0;
   go=0;
   ires=0;
   iret=term_wait_fd(fd, skip?5000:1000);
   while (iret==1) {
     ERR_SI(l=recv(fd, msg, sizeof(msg)-1, 0));
-    if (l==0) return(0);
+  /*  if (l==0) return(0); */
     msg[l]='\0';
-    if (skip==4) {
-      ires=1;
-    } else if (skip==3) {
+    if (skip==3) {
       if (NULL!=strstr(msg, "Acknowledged")) ires=1;
     } else if (skip==1 || skip==2) {
       if (NULL!=strstr(msg, "SICS")) ires=1;
@@ -81,6 +88,7 @@ int readWrite(int fd, int skip) {
     if (go) break;
     iret=term_wait_fd(fd, skip?5000:1000);
   }
+  if (n==0 && ires==1) return 1;
   return ires*n;
   OnError: return -1;
 }
@@ -139,7 +147,7 @@ int main (int argc, char *argv[]) {
     printf("rejected\n");
     return 0;
   }
-  printf("reading welcome message ...\n");
+  if (skip==2) printf("reading welcome message ...\n");
   if (j==0) {
     rights=getenv("six_rights");
     if (rights!=NULL && 0==strcmp(rights, instr)) {
@@ -149,7 +157,7 @@ int main (int argc, char *argv[]) {
       sprintf(ibuf, "%suser", instr);
       str_lowcase(ibuf, ibuf);
       us=ibuf;
-      ps="02lns1";
+      ps="03lns1";
     }
   }
   sprintf(buf, "config Rights %s %s\r\n", us, ps);
@@ -158,13 +166,14 @@ int main (int argc, char *argv[]) {
   if (!i) {
     us="Spy";
   }
-  printf("logged in to SICS as %s on %s%s\n", us, instr, sim);
+  printf("\rlogged in to SICS as %s on %s%s\n", us, instr, sim);
+/*
   if (*sim!='\0') {
     strcpy(buf, "sync\r\n");
     ERR_SI(send(fd, buf, strlen(buf), 0));
-    ERR_I(i=readWrite(fd,4));
-    printf("synchronized (%d chars read)\n", i);
+    ERR_I(i=readWrite(fd,1));
   }
+*/
   iret=1;
   buf[0]='\0';
   pos=0;
@@ -185,7 +194,7 @@ int main (int argc, char *argv[]) {
       }
       fputs("\n", stdout);
       skip=0;
-      if (0==strcmp(lbuf,"sync")) skip=4;
+      if (0==strcmp(lbuf,"sync")) skip=1;
       l=strlen(buf);
 /*
       printf("sent> %s[%d chars]\n", buf, l);
@@ -194,9 +203,6 @@ int main (int argc, char *argv[]) {
       buf[l+1]=10;
       ERR_SI(send(fd, buf, l+2, 0));
       ERR_I(i=readWrite(fd,skip));
-      if (skip==4) {
-        printf("synchronize (%d chars read)\n", i);
-      }
       buf[0]='\0';
       pos=0;
     } else if (iret<0) { /* ?? */
diff --git a/tecs/tecs_plot.f b/tecs/tecs_plot.f
index 8dbd5f4d..d818a024 100644
--- a/tecs/tecs_plot.f
+++ b/tecs/tecs_plot.f
@@ -74,6 +74,7 @@
 	    print *,'No PGPLOT-Device defined'
 	    goto 9
 	  endif
+	  call sys_setenv('PGPLOT_DEV', device)
 	endif
 	
 	call pgqcol(i,ncol)