diff --git a/ease.c b/ease.c
index 8af3132..722c3a3 100644
--- a/ease.c
+++ b/ease.c
@@ -92,7 +92,7 @@ void EaseWriteError(EaseBase * eab)
   case EASE_DEV_CHANGED:
     ParPrintf(eab, eError, "ERROR: controller was exchanged on %s",
               eab->p.name);
-    EaseStop(eab);
+    /* EaseStop(eab); */
     break;
   case EASE_FAULT:
     ParPrintf(eab, eError, "ERROR: error on %s", eab->p.name);
@@ -268,7 +268,9 @@ int EaseHandler(EaseBase * eab)
       eab->state = EASE_notconnected;
       return 0;
     } else {
-      eab->tmo = 20;
+      if (eab->tmo > 20) {
+        eab->tmo = 20;
+      }
       snprintf(eab->msg, sizeof eab->msg,
                "get a first answer from %s", eab->p.name);
       eab->state = EASE_idle;
diff --git a/haakedriv.c b/haakedriv.c
index 4ce231e..d5d8e88 100644
--- a/haakedriv.c
+++ b/haakedriv.c
@@ -80,23 +80,33 @@ int HaakeHandler(void *object)
       }
       goto quit;
     }
-    l = strlen(eab->ans) - 1;
-    if (l >= 0 && eab->ans[l] != '$') { /* end char is not $ -> send again */
-      ParPrintf(eab, -2, "ans: %s", eab->ans);
-      if (drv->errcnt < 10) {
-        eab->state = EASE_read;
-        EaseWrite(eab, NULL);   /* send the same command again */
-        drv->errcnt++;
-        return 0;
-      }
-      eab->errCode = EASE_ILL_ANS;
-      eab->state = EASE_idle;
-      goto error;
-    } else {
-      drv->errcnt = 0;
-    }
     if (iret == 1) {
       ParPrintf(eab, -2, "ans: %s", eab->ans);
+
+      if (eab->state == EASE_lost) {
+        if (strcmp(eab->ans, "F001") == 0) {
+          EaseWrite(eab, "V");
+        }
+        goto quit;
+      }
+      l = strlen(eab->ans) - 1;
+      if (l >= 0 && eab->ans[l] != '$') {
+        /* end char is not $ -> send again */
+        ParPrintf(eab, -2, "ans: %s", eab->ans);
+        if (drv->errcnt < 10) {
+          eab->state = EASE_read;
+          EaseWrite(eab, NULL);   /* send the same command again */
+          drv->errcnt++;
+          return 0;
+        }
+        eab->errCode = EASE_ILL_ANS;
+        eab->state = EASE_idle;
+        goto error;
+      } else {
+        drv->errcnt = 0;
+      }
+
+
       if (eab->state == EASE_lost) {
         goto quit;
       } else if (eab->cmd[0] == 'V') {
@@ -112,7 +122,7 @@ int HaakeHandler(void *object)
         eab->state = EASE_idle;
         goto quit;
       } else {
-        eab->tmo = 120;
+        /* eab->tmo = 20; no need to change the timeout ? */
       }
     }
     if (iret != 1) {
@@ -126,12 +136,10 @@ int HaakeHandler(void *object)
       eab->state = EASE_lost;
     }
   } else if (eab->state == EASE_lost) {
-/*
     if (time(NULL) > eab->cmdtime) {
       EaseWrite(eab, "check");
       eab->state = EASE_lost;
     }
-*/
   }
   goto quit;
 error:
diff --git a/linadriv.c b/linadriv.c
index 9fd0b0d..6e36c63 100644
--- a/linadriv.c
+++ b/linadriv.c
@@ -59,11 +59,14 @@ int LinaHandler(void *object)
     if (iret == 1) {
       ParPrintf(eab, -2, "ans: %s", eab->ans);
       if (eab->state == EASE_lost) {
+        if (strcmp(eab->ans, "6,0") == 0) {
+          EaseWrite(eab, "ID");
+        }
         goto quit;
       } else if (strncmp(eab->cmd, "ID", 2) == 0) {
         if (strcmp(eab->ans, eab->version) == 0) {
           /* we are still connected with the same device */
-        } else if (*eab->version == '\0') {
+        } else if (*eab->version == '\0' && strcmp(eab->ans, "7265") == 0) {
           strncat(eab->version, eab->ans, sizeof(eab->version) - 1);
         } else {                /* version (and therefore device) changed */
           eab->errCode = EASE_DEV_CHANGED;
@@ -73,7 +76,7 @@ int LinaHandler(void *object)
         eab->state = EASE_idle;
         goto quit;
       } else {
-        eab->tmo = 120;
+        eab->tmo = 10;
       }
     }
     if (iret != 1) {
@@ -87,12 +90,10 @@ int LinaHandler(void *object)
       eab->state = EASE_lost;
     }
   } else if (eab->state == EASE_lost) {
-/*
     if (time(NULL) > eab->cmdtime) {
       EaseWrite(eab, "RS");
       eab->state = EASE_lost;
     }
-*/
   }
   goto quit;
 error:
diff --git a/lsc370driv.c b/lsc370driv.c
index 1edc348..a824eb9 100644
--- a/lsc370driv.c
+++ b/lsc370driv.c
@@ -257,6 +257,7 @@ static void Lsc370ParDef(void *object)
   ParName("maxPower");
   ParTail("mW");
   power = Lsc370Power(drv, 100.0);
+  ParFmt("%.0g");
   ParFloat(&power, 0.0);
 
   ParName("power");
@@ -349,9 +350,11 @@ static long Lsc370Read(long pc, void *object)
       goto skipHtrRng;
     if (1 == sscanf(eab->ans, "%d", &rng)) {
       drv->htrRange = rng;
+/*
       if (rng == 0) {
         drv->set = 0;
       }
+*/
     }
   skipHtrRng:
 
diff --git a/make_gen b/make_gen
index db48f44..16a188d 100644
--- a/make_gen
+++ b/make_gen
@@ -37,8 +37,7 @@ libpsi.a: $(OBJ)
 	ranlib libpsi.a
 
 clean:
-	rm -f *.a
-	rm -f *.o
+	rm -f *.a *.o *.d
 
 SINQOPT=-DGRAPH_MHC3 -DUSE_MULTICAST -DSEND_PORT=0xABCB -DSERVER_HOST="\"acslg1\""
 dgrambroadcast.o: dgrambroadcast.h dgrambroadcast.c
diff --git a/makefile_linux b/makefile_linux
index 056eb20..e35d8b5 100644
--- a/makefile_linux
+++ b/makefile_linux
@@ -11,9 +11,11 @@ include ../sllinux_def
 
 CC       = gcc
 CFLAGS = -I$(HDFROOT)/include -DHDF4  -DHDF5 $(NI) -Ihardsup \
-       -I..  -DCYGNUS -DNONINTF -g  $(DFORTIFY)  \
+       -I..  -MMD -DCYGNUS -DNONINTF -g  $(DFORTIFY)  \
        -Wall -Wno-unused -Wunused-value -Wno-comment -Wno-switch -Werror
 
 EXTRA=nintf.o
 
 include make_gen
+
+-include $(OBJ:.o=.d)
diff --git a/oxinst.c b/oxinst.c
index a8b6129..1940b64 100644
--- a/oxinst.c
+++ b/oxinst.c
@@ -100,7 +100,7 @@ int OxiHandler(void *object)
         goto quit;
       } else if (eab->cmd[2] == 'k') {  /* ?ck */
       } else {
-        eab->tmo = 120;
+        eab->tmo = 120; /* long timeout: the user may block the response with the adjust keys */ 
         if (eab->syntax <= -8) {
           corr = OxiCorrect(eab->ans);
           if (corr) {
diff --git a/pardef.c b/pardef.c
index 8adbe5f..ec000c1 100644
--- a/pardef.c
+++ b/pardef.c
@@ -25,6 +25,7 @@ Markus Zolliker, March 2005
 #define ILLPRIV -5
 #define BADLOG -6
 #define UNKPAR -7
+#define PARUNDEF -8
 
 typedef enum { NO_OP, FMT_OP, SET_OP, GET_OP, INIT_OP } ParOp;
 
@@ -392,11 +393,10 @@ static int ParOutError(SConnection * con, ParData * o)
     SCPrintf(con, eError, "ERROR: %s %s is unknown", o->name,
              ctx->thisPar);
     break;
-    /*
-       case BUSY:
-       SCPrintf(con, eError, "ERROR: %s busy", o->name);
-       break;
-     */
+  case PARUNDEF:
+    SCPrintf(con, eError, "ERROR: %s %s is undefined",
+             o->name, ctx->thisPar);
+    break;
   default:
     if (ctx->returnValue < 0) {
       return -1;
@@ -1199,10 +1199,11 @@ void ParFloat(float *value, float defValue)
   case FMT_OP:
     if (*value == PAR_NAN) {
       ctx->fmt = NULL;
-      ParOut("");               /* undefined */
+      /* ctx->returnValue = PARUNDEF; */
+      ParOut("");
     } else {
       if (ctx->fmt == NULL) {
-        ctx->fmt = "%#.5g";
+        ctx->fmt = "%.5g";
       }
       snprintf(buf, sizeof buf, ctx->fmt, *value);
       ctx->fmt = NULL;
@@ -1249,7 +1250,8 @@ void ParInt(int *value, int defValue)
     /* fall through */
   case FMT_OP:
     if (*value == PAR_LNAN) {
-      ParOut("");               /* undefined */
+      /* ctx->returnValue = PARUNDEF; */
+      ParOut(""); /* undefined */
     } else {
       snprintf(buf, sizeof buf, "%d", *value);
       ParOut(buf);
diff --git a/tasscan.c b/tasscan.c
index 73ee611..6a09716 100644
--- a/tasscan.c
+++ b/tasscan.c
@@ -745,7 +745,7 @@ static int TASScanCount(pScanData self, int iPoint)
    */
   fVal = GetCounterPreset(self->pCounterData);
   eOld = GetStatus();
-  status = DoCount(self->pCounterData, fVal, self->pCon, 1);
+  status = DoCount(self->pCounterData, fVal, self->pCon, 2);
   iRet = Wait4Success(GetExecutor());
   if (iRet == DEVINT) {
     SCWrite(self->pCon, "Counting aborted due to Interrupt", eLog);
@@ -1322,6 +1322,10 @@ int TASScan(SConnection * pCon, SicsInterp * pSics, void *pData,
   if (!SCMatchRights(pCon, usUser))
     return 0;
 
+  if (pTAS->pScan->iActive) {
+    SCWrite(pCon, "ERROR: a scan is still running", eError);
+    return 0;
+  }
   /*
      check if we are a fast scan or a normal scan
    */
diff --git a/tecsdriv.c b/tecsdriv.c
index 960026a..f05c172 100644
--- a/tecsdriv.c
+++ b/tecsdriv.c
@@ -113,9 +113,7 @@ int TecsWrapper(SConnection * pCon, SicsInterp * pSics, void *pData,
   assert(pD);
   pMe = pD->pPrivate;
   assert(pMe);
-  strcpy(pBueffel, " ");
-  strcat(pBueffel, argv[1]);
-  strcat(pBueffel, " ");
+  snprintf(pBueffel, sizeof pBueffel, " %s ", argv[1]);
   strtolower(pBueffel);
   if (0 == strcmp(pBueffel, " targetvalue ")) {
     if (argc == 2) {