diff --git a/nxscript.c b/nxscript.c
index b8c41ef3..298d0dbb 100644
--- a/nxscript.c
+++ b/nxscript.c
@@ -1509,7 +1509,7 @@ static int SPutPadding(void *message, void *userData)
       *pEnd = '\0';
       len = atoi(pPtr);
     }
-    pPtr = malloc(len*sizeof(char));
+    pPtr = malloc((len+5)*sizeof(char));
     if(pPtr != NULL){
       memset(pPtr,0,len*sizeof(char));
       strncpy(pPtr,pEnd+1,len);
@@ -2156,3 +2156,20 @@ int MakeNXScript(SConnection * pCon, SicsInterp * pSics, void *pData,
   }
   return 1;
 }
+static pNXScript sysScript= NULL;
+/*-----------------------------------------------------------------------------------*/
+int isNXScriptWriting(void)
+{
+
+  if(sysScript == NULL){
+    sysScript = FindCommandData(pServ->pSics,"nxscript","NXScript");
+  }
+
+
+  if(sysScript != NULL && sysScript->fileHandle != NULL){
+    return 1;
+  } else {
+    return 0;
+  }
+
+}
diff --git a/nxscript.h b/nxscript.h
index 08b8290a..28f43cef 100644
--- a/nxscript.h
+++ b/nxscript.h
@@ -21,6 +21,7 @@ int NXScriptAction(SConnection * pCon, SicsInterp * pSics, void *pData,
 
 char *makeFilename(SicsInterp * pSics, SConnection * pCon);
 void changeExtension(char *filename, char *newExtension);
+int isNXScriptWriting(void);
 /*==============  a personal data structure ============================*/
 typedef struct {
   pObjectDescriptor pDes;
diff --git a/sllinux_def b/sllinux_def
index 5916803b..ee2f5005 100644
--- a/sllinux_def
+++ b/sllinux_def
@@ -13,4 +13,4 @@ HDFROOT=/afs/psi.ch/project/sinq/sl6
 TCLINC=.
 
 #DBG= -g -fstack-protector-all
-DBG= -g 
+DBG= -g
\ No newline at end of file
diff --git a/status.c b/status.c
index e30db3c1..c850e698 100644
--- a/status.c
+++ b/status.c
@@ -58,7 +58,8 @@
 #include "sicshipadaba.h"
 #include "messagepipe.h"
 #include "scan.h"  
-#include "exeman.h"      
+#include "exeman.h"  
+#include "nxscript.h"    
 #undef VALUECHANGE
 #define VALUECHANGE 2
 
@@ -461,6 +462,18 @@ static int CheckUserWait(void *message, void *userData)
     return MPCONTINUE;
 }
 /*--------------------------------------------------------------------------------*/
+static int CheckNXScript(void *message, void *userData)
+{
+  int *status = (int *)message;
+
+  if(*status == eEager){
+    if(isNXScriptWriting()){
+      *status = eWriting;
+    }
+  }
+  return MPCONTINUE;
+}
+/*--------------------------------------------------------------------------------*/
 static pMP statusPipe = NULL;
 
 static void BuildStatusChain(void)
@@ -471,6 +484,7 @@ static void BuildStatusChain(void)
   AppendMPFilter(statusPipe,CheckScan,NULL,NULL);
   AppendMPFilter(statusPipe,CheckExe,NULL,NULL);
   AppendMPFilter(statusPipe,CheckUserWait,NULL,NULL);
+  AppendMPFilter(statusPipe,CheckNXScript,NULL,NULL);
 }
 /*-------------------------------------------------------------------------------*/
 static int StatusTask(void *data)
diff --git a/task.c b/task.c
index 8e338657..a511357f 100644
--- a/task.c
+++ b/task.c
@@ -26,8 +26,10 @@
 #define YIELDING 3
 
 #define IDUNDEFINED 0L
+#define TASKMAGIC 777111999
 /*--------------------------------------------------------------------------*/
 typedef struct __TaskHead {
+  long magic;
   long lID;
   long groupID;
   int iStatus;
@@ -68,6 +70,7 @@ static pTaskHead MakeTaskHead(char *name, TaskFunc pTask, SignalFunc pSignal,
   }
   memset(pNew, 0, sizeof(TaskHead));
 
+  pNew->magic = TASKMAGIC;
   pNew->name = strdup(name);
   pNew->start_time = time(NULL);
   pNew->pRun = pTask;
@@ -106,6 +109,7 @@ static void DeleteTaskHead(pTaskHead self)
   if (self->pNext != NULL) {
     self->pNext->pPrevious = self->pPrevious;
   }
+  memset(self,0,sizeof(TaskHead));
   free(self);
 }
 
@@ -492,7 +496,7 @@ pTaskHead TaskIteratorStart(pTaskMan self)
 /*-----------------------------------------------------------------------------*/
 pTaskHead TaskIteratorNext(pTaskHead it)
 {
-  if(it != NULL){
+  if(it != NULL && it->magic == TASKMAGIC){
     return it->pNext;
   } 
   return NULL;
@@ -546,7 +550,11 @@ const char * GetTaskName(pTaskHead it)
 /*------------------------------------------------------------------------------*/
 const void *GetTaskData(pTaskHead it)
 {
-  return (const void*)it->pData;
+  if(it->magic == TASKMAGIC){
+    return (const void*)it->pData;
+  } else {
+    return NULL;
+  }
 }
 /*------------------------------------------------------------------------------*/
 long GetTaskGroupID(pTaskMan self)
diff --git a/tasub.c b/tasub.c
index 3694c347..e76e248c 100644
--- a/tasub.c
+++ b/tasub.c
@@ -15,6 +15,7 @@
  Mark Koennecke, September 2011
 ----------------------------------------------------------------------*/
 #include <assert.h>
+ #include <math.h>
 #include "sics.h"
 #include "lld.h"
 #include "SCinter.h"
@@ -971,7 +972,7 @@ static void listDiagnostik(ptasUB self, SConnection * pCon)
 static int addAuxReflection(ptasUB self, SConnection * pCon,
                             SicsInterp * pSics, int argc, char *argv[])
 {
-  int status;
+  int status, ss;
   tasReflection r1, r2;
   float value = -999.99;
   char pBueffel[256];
@@ -1027,7 +1028,8 @@ static int addAuxReflection(ptasUB self, SConnection * pCon,
     r2.qe.kf = self->current.kf;
     r2.qe.ki = self->current.ki;
     GetDrivablePosition(self->motors[A3], pCon, &value);
-    r2.angles.a3 = value + 180.;
+    ss = self->machine.ss_sample;
+    r2.angles.a3 = fmod(value + ss*180.,360.) - ss*180.; 
     r2.angles.sgu = .0;
     r2.angles.sgl = .0;
     calcTwoTheta(B, r2.qe, self->machine.ss_sample,
diff --git a/tasublib.c b/tasublib.c
index 1ef9efa1..768d0086 100644
--- a/tasublib.c
+++ b/tasublib.c
@@ -184,7 +184,7 @@ double tasAngleBetweenReflections(MATRIX B, tasReflection r1,
   chi1 = mat_mul(B, h1);
   chi2 = mat_mul(B, h2);
   if (chi1 != NULL && chi2 != NULL) {
-    angle = angleBetween(chi1, chi2);
+    angle = tasAngleBetween(chi1, chi2);
     killVector(chi1);
     killVector(chi2);
   }
@@ -271,8 +271,9 @@ int makeAuxReflection(MATRIX B, tasReflection r1, tasReflection * r2,
   r2->qe.ki = r1.qe.ki;
   r2->qe.kf = r1.qe.kf;
 
-  theta = calcTheta(r1.qe.ki, r1.qe.kf, r1.angles.sample_two_theta);
-  om = r1.angles.a3 - theta;
+  theta = calcTheta(r1.qe.ki, r1.qe.kf, 
+      ss*r1.angles.sample_two_theta);
+  om = r1.angles.a3 - ss*theta;
   om += tasAngleBetweenReflections(B, r1, *r2);
 
   QC = tasReflectionToHC(r2->qe, B);
@@ -289,12 +290,17 @@ int makeAuxReflection(MATRIX B, tasReflection r1, tasReflection * r2,
     return TRIANGLENOTCLOSED;
   }
   r2->angles.sample_two_theta = ss * Acosd(cos2t);
-  theta = calcTheta(r1.qe.ki, r1.qe.kf, r2->angles.sample_two_theta);
-  r2->angles.a3 = om + theta;
+  theta = calcTheta(r1.qe.ki, r1.qe.kf, ss*r2->angles.sample_two_theta);
+  r2->angles.a3 = om + ss*theta;
+
+  r2->angles.a3 = fmod(r2->angles.a3 + ss*180.,360.) - ss*180.; 
+
+  /*
   r2->angles.a3 -= 180.;
   if (r2->angles.a3 < -180.) {
     r2->angles.a3 += 360.;
   }
+  */
   mat_free(QC);
 
   return 1;
@@ -415,22 +421,16 @@ MATRIX calcPlaneNormalQ(MATRIX UB, tasReflection r1, tasReflection r2)
 
   return planeNormal;
 }
-/*--------------------------------------------------------------------*/
-MATRIX calcTestUB(lattice cell, double om, double sgu, double sgl)
+/*--------------------------------------------------------------------
+  This is shot. The resulting UB is invalid. This needs more throught. 
+
+*/
+MATRIX calcUBFromAngles(MATRIX B, double om, double sgu, double sgl)
 {
-  MATRIX B, M, N, OM, UB;
+
+  MATRIX M, N, OM, UB;
   int status;
 
-  /*
-   * create matrices
-   */
-  B = mat_creat(3, 3, ZERO_MATRIX);
-
-  status = calculateBMatrix(cell, B);
-  if (status < 0) {
-    return NULL;
-  }
-
   M = mat_creat(3, 3, ZERO_MATRIX);
   N = mat_creat(3, 3, ZERO_MATRIX);
   OM = mat_creat(3, 3, ZERO_MATRIX);
@@ -468,11 +468,30 @@ MATRIX calcTestUB(lattice cell, double om, double sgu, double sgl)
   mat_free(OM);
   mat_free(N);
   mat_free(M);
-  mat_free(B);
 
   return UB;
 }
 /*--------------------------------------------------------------------*/
+MATRIX calcTestUB(lattice cell, double om, double sgu, double sgl)
+{
+  MATRIX B, UB;
+  int status;
+
+  /*
+   * create matrices
+   */
+  B = mat_creat(3, 3, ZERO_MATRIX);
+
+  status = calculateBMatrix(cell, B);
+  if (status < 0) {
+    return NULL;
+  }
+  UB = calcUBFromAngles(B,om,sgu,sgl);
+
+  mat_free(B);
+  return UB;
+}
+/*--------------------------------------------------------------------*/
 MATRIX calcTestNormal(double sgu, double sgl)
 {
   MATRIX M, N, Z, NORM;
diff --git a/tasublib.h b/tasublib.h
index 15ef992f..3bccc5c3 100644
--- a/tasublib.h
+++ b/tasublib.h
@@ -186,21 +186,33 @@ MATRIX calcTasUBFromTwoReflections(lattice cell, tasReflection r1,
  */
 MATRIX calcTestNormal(double sgu, double sgl);
 /**
- * calculate a test UB 
- * @param cell The lattice constant of the crystal
+ * calculate a test UB from angles
+ * @param cell The B lattice constants
  * @param om A theoretical om for the crystal
  * @param sgu A theoretical plane tilt on upper
  * @param sgl A theoretical plane tilt on lower
- * @return a UB matix on sucess, or NULL on failure. This can only happen 
+ * @return a UB matrix on sucess, or NULL on failure. This can only happen 
  * when out of memory or with a bad cell
  */
 MATRIX calcTestUB(lattice cell, double om, double sgu, double sgl);
+/**
+ * calculate a test UB 
+ * @param B  The B matrix as calculated from the cell constants
+ * @param om A theoretical om for the crystal
+ * @param sgu A theoretical plane tilt on upper
+ * @param sgl A theoretical plane tilt on lower
+ * @return a UB matrix on sucess, or NULL on failure. This can only happen 
+ * when out of memory or with a bad cell
+ */
+MATRIX calcUBFromAngles(MATRIX B, double om, double sgu, double sgl);
+
 /**
  * calcluate the normal to the plane describe by the two reflections r1, r2
  * @param r1 first reflection
  * @param r2 second reflection
  * @return a plane normal on success, NULL else
  */
+
 MATRIX calcPlaneNormal(tasReflection r1, tasReflection r2);
 /**
  * calcluate the normal to the plane describe by the two reflections r1, r2
diff --git a/vector.c b/vector.c
index a508ff9e..bbf42d38 100644
--- a/vector.c
+++ b/vector.c
@@ -189,6 +189,37 @@ double angleBetween(MATRIX v1, MATRIX v2)
   }
   return angle;
 }
+/*-----------------------------------------------------------------------
+  angleBetween gives only angles between 0 - 180. This is also the
+  only thing there is; the direction of the rotation depends on the 
+  viewpoint and thus is ill defined. This version determines the 
+  sign of the rotation from v3[2]. I made a special version in order not 
+  to trouble other uses of angleBetween. 
+  -----------------------------------------------------------------------*/
+
+double tasAngleBetween(MATRIX v1, MATRIX v2)
+{
+  double angle, angles, sum;
+  MATRIX v3 = NULL;
+  int i;
+
+  angle = vectorDotProduct(v1, v2) / (vectorLength(v1) * vectorLength(v2));
+  v3 = vectorCrossProduct(v1, v2);
+  if (v3 != NULL) {
+    angles = vectorLength(v3) / (vectorLength(v1) * vectorLength(v2));
+    angle = Atan2d(angles, angle);
+    for(i = 0, sum = .0; i < 3; i++){
+      sum += v3[i][0];
+    }
+    if(sum < 0){
+      angle *= -1.;
+    }
+  } else {
+    angle = Acosd(angle);
+  }
+  return angle;
+}
+
 
 /*----------------------------------------------------------------------*/
 void scaleVector(MATRIX v, double scale)
diff --git a/vector.h b/vector.h
index c2c9b5ea..7fcef878 100644
--- a/vector.h
+++ b/vector.h
@@ -91,12 +91,20 @@ MATRIX vectorCrossProduct(MATRIX v1, MATRIX v2);
  */
 MATRIX matFromTwoVectors(MATRIX v1, MATRIX v2);
 /**
- * calculate the nagle between two vectors
+ * calculate the angle between two vectors
  * @param v1 first vector
  * @param v2 second vector
  * @return angle in degree
  */
 double angleBetween(MATRIX v1, MATRIX v2);
+/**
+ * calculate the angle between two vectors. Try to determine the 
+ * sign of the rotation
+ * @param v1 first vector
+ * @param v2 second vector
+ * @return angle in degree
+ */
+double tasAngleBetween(MATRIX v1, MATRIX v2);
 
 /**
  * scale the vector v with scale