diff --git a/doc/examples/data/deltat_tdc_dolly_1020.bin b/doc/examples/data/deltat_tdc_dolly_1020.bin
new file mode 100644
index 00000000..d8d20925
Binary files /dev/null and b/doc/examples/data/deltat_tdc_dolly_1020.bin differ
diff --git a/doc/examples/test-asy-LF-BaB6.msr b/doc/examples/test-asy-LF-BaB6.msr
new file mode 100644
index 00000000..a65ea437
--- /dev/null
+++ b/doc/examples/test-asy-LF-BaB6.msr
@@ -0,0 +1,60 @@
+BaB6 T20K LF5G                                                
+###############################################################
+FITPARAMETER
+#      Nr. Name        Value     Step      Pos_Error  Boundaries
+        1 alpha       0.7       0           none        0       none    
+        2 asy         0.2091    -0.0013     0.0013      0       0.33    
+        3 field       2.127     0           none        0       none    
+        4 width       0.5387    -0.0054     0.0055      0       100     
+        5 hopp        0.119     -0.013      0.014       0       100     
+        6 asyConst    0         0           none        
+
+###############################################################
+THEORY
+asymmetry      2
+dynGssKTLF  fun1     4     5    (frequency damping hopping-rate)
++
+asymmetry      6
+
+###############################################################
+FUNCTIONS
+fun1 = par3 * gamma_mu
+
+###############################################################
+RUN data/deltat_tdc_dolly_1020 PIE1 PSI PSI-BIN   (name beamline institute data-file-format)
+fittype         2         (asymmetry fit)
+alpha           1
+map             0    0    0    0    0    0    0    0    0    0
+forward         2 
+backward        1 
+background      15      146     13      148        # estimated bkg: 20.4846 / 4.8731
+data            170     9956    168     9110    
+t0              160.0   161.0   
+fit             0.25    10     
+packing         5
+
+###############################################################
+COMMANDS
+MINIMIZE
+MINOS
+SAVE
+
+###############################################################
+FOURIER
+units            Gauss   # units either 'Gauss', 'MHz', or 'Mc/s'
+fourier_power    12
+apodization      STRONG  # NONE, WEAK, MEDIUM, STRONG
+plot             POWER   # REAL, IMAG, REAL_AND_IMAG, POWER, PHASE
+phase            8
+#range_for_phase_correction 50.0 70.0
+range            0    800
+
+###############################################################
+PLOT 2   (asymmetry plot)
+runs     1   
+range    0   9.5   -0.15   0.3
+view_packing 150
+
+###############################################################
+STATISTIC --- 2013-07-01 20:40:44
+  chisq = 1911.7, NDF = 1905, chisq/NDF = 1.003494
diff --git a/src/classes/PTheory.cpp b/src/classes/PTheory.cpp
index 30174ce8..cfa21852 100644
--- a/src/classes/PTheory.cpp
+++ b/src/classes/PTheory.cpp
@@ -2687,14 +2687,14 @@ void PTheory::CalculateGaussLFIntegral(const Double_t *val) const
   fLFIntegral.push_back(0.0); // start value of the integral
 
   ft = 0.0;
-  Double_t step = 0.0, lastStep = 1.0, diff = 0.0;
+  Double_t step = 0.0, lastft = 1.0, diff = 0.0;
   do {
     t  += dt;
     step = 0.5*dt*preFactor*(exp(-0.5*pow(Delta * (t-dt), 2.0))*sin(w0*(t-dt))+
                              exp(-0.5*pow(Delta * t, 2.0))*sin(w0*t));
-    diff = fabs(fabs(step)-fabs(lastStep));
-    lastStep = step;
     ft += step;
+    diff = fabs(fabs(lastft)-fabs(ft));
+    lastft = ft;
     fLFIntegral.push_back(ft);
   } while ((t <= 20.0) && (diff > 1.0e-10));
 }
@@ -2762,13 +2762,13 @@ void PTheory::CalculateLorentzLFIntegral(const Double_t *val) const
   ft += 0.5*dt*preFactor*(1.0+sin(w0*t)/(w0*t)*exp(-a*t));
   fLFIntegral.push_back(ft);
   // calculate all the other integral bin values
-  Double_t step = 0.0, lastStep = 1.0, diff = 0.0;
+  Double_t step = 0.0, lastft = 1.0, diff = 0.0;
   do {
     t  += dt;
     step = 0.5*dt*preFactor*(sin(w0*(t-dt))/(w0*(t-dt))*exp(-a*(t-dt))+sin(w0*t)/(w0*t)*exp(-a*t));
-    diff = fabs(fabs(step)-fabs(lastStep));
-    lastStep = step;
     ft += step;
+    diff = fabs(fabs(lastft)-fabs(ft));
+    lastft = ft;
     fLFIntegral.push_back(ft);
   } while ((t <= 20.0) && (diff > 1.0e-10));
 }
@@ -2792,7 +2792,7 @@ Double_t PTheory::GetLFIntegralValue(const Double_t t) const
   if (idx + 2 > fLFIntegral.size())
     return fLFIntegral.back();
 
-  // linearly interpolate between the two relvant function bins
+  // linearly interpolate between the two relevant function bins
   Double_t df = (fLFIntegral[idx+1]-fLFIntegral[idx])*(t/fSamplingTime-static_cast<Double_t>(idx));
 
   return fLFIntegral[idx]+df;
diff --git a/src/musredit_qt5/musredit/PTextEdit.cpp b/src/musredit_qt5/musredit/PTextEdit.cpp
index 45f52b9d..16734ec8 100644
--- a/src/musredit_qt5/musredit/PTextEdit.cpp
+++ b/src/musredit_qt5/musredit/PTextEdit.cpp
@@ -2589,7 +2589,8 @@ void PTextEdit::musrSwapMsrMlog()
   // get current file name
   QString currentFileName = *fFilenames.find( currentEditor() );
   QString swapFileName;
-  QString tempFileName = QString("__swap__.msr");
+  QProcessEnvironment env = QProcessEnvironment::systemEnvironment();
+  QString tempFileName = QString("%1/.musrfit/__swap__.msr").arg(env.value("HOME"));
 
   // check if it is a msr-, mlog-, or another file
   int idx;