diff --git a/src/external/MuSRFitGUI/MuSRFit.pl b/src/external/MuSRFitGUI/MuSRFit.pl
index f5b8456d..7aa901f9 100755
--- a/src/external/MuSRFitGUI/MuSRFit.pl
+++ b/src/external/MuSRFitGUI/MuSRFit.pl
@@ -1,6 +1,6 @@
 # Form implementation generated from reading ui file 'MuSRFit.ui'
 #
-# Created: Thu Sep 17 14:43:44 2009
+# Created: Thu Sep 17 23:18:50 2009
 #      by: The PerlQt User Interface Compiler (puic)
 #
 # WARNING! All changes made in this file will be lost!
@@ -584,7 +584,7 @@ sub NEW
         setName("MuSRFitform" );
     }
     setSizePolicy(Qt::SizePolicy(3, 3, 1, 1, this->sizePolicy()->hasHeightForWidth()) );
-    setMinimumSize(Qt::Size(21, 251) );
+    setMinimumSize(Qt::Size(23, 246) );
     setIcon($image0 );
 
     setCentralWidget(Qt::Widget(this, "qt_central_widget"));
@@ -998,7 +998,7 @@ sub NEW
     PlotOptions->setAlignment( int(&Qt::ButtonGroup::AlignTop) );
     PlotOptions->setExclusive( 1 );
     PlotOptions->setRadioButtonExclusive( 1 );
-    PlotOptions->setProperty( "selectedId", Qt::Variant(int(2) ) );
+    PlotOptions->setProperty( "selectedId", Qt::Variant(int(-1) ) );
 
     my $LayoutWidget_5 = Qt::Widget(PlotOptions, '$LayoutWidget_5');
     $LayoutWidget_5->setGeometry( Qt::Rect(3, 18, 190, 94) );
@@ -1057,7 +1057,7 @@ sub NEW
     ErrorCalc->setAlignment( int(&Qt::ButtonGroup::AlignTop | &Qt::ButtonGroup::AlignLeft) );
     ErrorCalc->setExclusive( 1 );
     ErrorCalc->setRadioButtonExclusive( 1 );
-    ErrorCalc->setProperty( "selectedId", Qt::Variant(int(0) ) );
+    ErrorCalc->setProperty( "selectedId", Qt::Variant(int(1) ) );
 
     MINOS = Qt::RadioButton(ErrorCalc, "MINOS");
     MINOS->setGeometry( Qt::Rect(19, 59, 69, 22) );
@@ -1845,7 +1845,7 @@ sub languageChange
     PlotOptions->setTitle( trUtf8("Options") );
     textLabel1_4->setText( trUtf8("X Range") );
     textLabel1_4_2->setText( trUtf8("Y Range") );
-    ltc->setText( trUtf8("Life time cor.") );
+    ltc->setText( trUtf8("Life time correction") );
     go->setText( trUtf8("Fit") );
     PlotMSR->setText( trUtf8("Plot") );
     ErrorCalc->setTitle( trUtf8("Error") );
@@ -2755,6 +2755,8 @@ sub RunSelectionToggle
 sub fileBrowse
 {
 
+    my $RunFiles=RunFiles->text();
+    print "Runs:$RunFiles\n";
     my $files_ref=Qt::FileDialog::getOpenFileNames(
 	    "Data files (*.root *.bin)",
 	    "./",
@@ -2762,7 +2764,13 @@ sub fileBrowse
 	    "open files dialog",
 	    "Select one or more files to fit");
     my @files = @$files_ref;
-    my $RunFiles=join(",",@files);
+    if ($RunFiles eq "") {
+# We started with an empty list	
+	$RunFiles=join(",",@files);
+    } else {
+# Add files to existing list
+	$RunFiles=join(",",$RunFiles,@files);
+    }
     RunFiles->setText($RunFiles);
 
 }
diff --git a/src/external/MuSRFitGUI/MuSRFit.ui b/src/external/MuSRFitGUI/MuSRFit.ui
index 8aaed86c..cabd228d 100755
--- a/src/external/MuSRFitGUI/MuSRFit.ui
+++ b/src/external/MuSRFitGUI/MuSRFit.ui
@@ -22,8 +22,8 @@
     </property>
     <property name="minimumSize">
         <size>
-            <width>21</width>
-            <height>251</height>
+            <width>23</width>
+            <height>246</height>
         </size>
     </property>
     <property name="caption">
@@ -2168,7 +2168,7 @@
                     <bool>true</bool>
                 </property>
                 <property name="selectedId" stdset="0">
-                    <number>2</number>
+                    <number>-1</number>
                 </property>
                 <widget class="QLayoutWidget">
                     <property name="name">
@@ -2247,7 +2247,7 @@
                                 <cstring>ltc</cstring>
                             </property>
                             <property name="text">
-                                <string>Life time cor.</string>
+                                <string>Life time correction</string>
                             </property>
                             <property name="checked">
                                 <bool>true</bool>
@@ -2367,7 +2367,7 @@
                     <bool>true</bool>
                 </property>
                 <property name="selectedId" stdset="0">
-                    <number>0</number>
+                    <number>1</number>
                 </property>
                 <widget class="QRadioButton">
                     <property name="name">
diff --git a/src/external/MuSRFitGUI/MuSRFit.ui.h b/src/external/MuSRFitGUI/MuSRFit.ui.h
index f7c8f5a5..3979fcc8 100755
--- a/src/external/MuSRFitGUI/MuSRFit.ui.h
+++ b/src/external/MuSRFitGUI/MuSRFit.ui.h
@@ -741,6 +741,8 @@ void MuSRFitform::RunSelectionToggle()
 
 void MuSRFitform::fileBrowse()
 {
+    my $RunFiles=RunFiles->text();
+    print "Runs:$RunFiles\n";
     my $files_ref=Qt::FileDialog::getOpenFileNames(
 	    "Data files (*.root *.bin)",
 	    "./",
@@ -748,7 +750,13 @@ void MuSRFitform::fileBrowse()
 	    "open files dialog",
 	    "Select one or more files to fit");
     my @files = @$files_ref;
-    my $RunFiles=join(",",@files);
+    if ($RunFiles eq "") {
+# We started with an empty list	
+	$RunFiles=join(",",@files);
+    } else {
+# Add files to existing list
+	$RunFiles=join(",",$RunFiles,@files);
+    }
     RunFiles->setText($RunFiles);
 }
 
diff --git a/src/external/MuSRFitGUI/devel/MuSRFit.pl b/src/external/MuSRFitGUI/devel/MuSRFit.pl
index d808142c..e771ca85 100755
--- a/src/external/MuSRFitGUI/devel/MuSRFit.pl
+++ b/src/external/MuSRFitGUI/devel/MuSRFit.pl
@@ -1,6 +1,6 @@
 # Form implementation generated from reading ui file 'MuSRFit.ui'
 #
-# Created: Thu Sep 17 17:13:26 2009
+# Created: Thu Sep 17 23:21:40 2009
 #      by: The PerlQt User Interface Compiler (puic)
 #
 # WARNING! All changes made in this file will be lost!
@@ -593,7 +593,7 @@ sub NEW
         setName("MuSRFitform" );
     }
     setSizePolicy(Qt::SizePolicy(3, 3, 1, 1, this->sizePolicy()->hasHeightForWidth()) );
-    setMinimumSize(Qt::Size(21, 251) );
+    setMinimumSize(Qt::Size(23, 246) );
     setIcon($image0 );
 
     setCentralWidget(Qt::Widget(this, "qt_central_widget"));
@@ -1996,7 +1996,7 @@ sub languageChange
     PlotOptions->setTitle( trUtf8("Options") );
     textLabel1_4->setText( trUtf8("X Range") );
     textLabel1_4_2->setText( trUtf8("Y Range") );
-    ltc->setText( trUtf8("Life time cor.") );
+    ltc->setText( trUtf8("Life time correction") );
     go->setText( trUtf8("Fit") );
     PlotMSR->setText( trUtf8("Plot") );
     ErrorCalc->setTitle( trUtf8("Error") );
@@ -2916,6 +2916,8 @@ sub RunSelectionToggle
 sub fileBrowse
 {
 
+    my $RunFiles=RunFiles->text();
+    print "Runs:$RunFiles\n";
     my $files_ref=Qt::FileDialog::getOpenFileNames(
 	    "Data files (*.root *.bin)",
 	    "./",
@@ -2923,7 +2925,13 @@ sub fileBrowse
 	    "open files dialog",
 	    "Select one or more files to fit");
     my @files = @$files_ref;
-    my $RunFiles=join(",",@files);
+    if ($RunFiles eq "") {
+# We started with an empty list	
+	$RunFiles=join(",",@files);
+    } else {
+# Add files to existing list
+	$RunFiles=join(",",$RunFiles,@files);
+    }
     RunFiles->setText($RunFiles);
 
 }
diff --git a/src/external/MuSRFitGUI/devel/MuSRFit.ui b/src/external/MuSRFitGUI/devel/MuSRFit.ui
index 25b297cf..fa6da379 100755
--- a/src/external/MuSRFitGUI/devel/MuSRFit.ui
+++ b/src/external/MuSRFitGUI/devel/MuSRFit.ui
@@ -22,8 +22,8 @@
     </property>
     <property name="minimumSize">
         <size>
-            <width>21</width>
-            <height>251</height>
+            <width>23</width>
+            <height>246</height>
         </size>
     </property>
     <property name="caption">
@@ -2247,7 +2247,7 @@
                                 <cstring>ltc</cstring>
                             </property>
                             <property name="text">
-                                <string>Life time cor.</string>
+                                <string>Life time correction</string>
                             </property>
                             <property name="checked">
                                 <bool>true</bool>
diff --git a/src/external/MuSRFitGUI/devel/MuSRFit.ui.h b/src/external/MuSRFitGUI/devel/MuSRFit.ui.h
index 40693faf..49977c0a 100755
--- a/src/external/MuSRFitGUI/devel/MuSRFit.ui.h
+++ b/src/external/MuSRFitGUI/devel/MuSRFit.ui.h
@@ -746,6 +746,8 @@ void MuSRFitform::RunSelectionToggle()
 
 void MuSRFitform::fileBrowse()
 {
+    my $RunFiles=RunFiles->text();
+    print "Runs:$RunFiles\n";
     my $files_ref=Qt::FileDialog::getOpenFileNames(
 	    "Data files (*.root *.bin)",
 	    "./",
@@ -753,7 +755,13 @@ void MuSRFitform::fileBrowse()
 	    "open files dialog",
 	    "Select one or more files to fit");
     my @files = @$files_ref;
-    my $RunFiles=join(",",@files);
+    if ($RunFiles eq "") {
+# We started with an empty list	
+	$RunFiles=join(",",@files);
+    } else {
+# Add files to existing list
+	$RunFiles=join(",",$RunFiles,@files);
+    }
     RunFiles->setText($RunFiles);
 }