diff --git a/sleepyhead/SleepLib/loader_plugins/prs1_loader.cpp b/sleepyhead/SleepLib/loader_plugins/prs1_loader.cpp
index 883b1074..c8299607 100644
--- a/sleepyhead/SleepLib/loader_plugins/prs1_loader.cpp
+++ b/sleepyhead/SleepLib/loader_plugins/prs1_loader.cpp
@@ -431,6 +431,7 @@ int PRS1Loader::Open(const QString & dirpath)
             c += OpenMachine(newpath + "/" + *sn);
         }
     }
+    // Serial numbers that don't start with a letter.
     for (sn = SerialNumbers.begin(); sn != SerialNumbers.end(); sn++) {
         if (!(*sn)[0].isLetter()) {
             c += OpenMachine(newpath + "/" + *sn);
@@ -632,6 +633,11 @@ int PRS1Loader::OpenMachine(const QString & path)
     emit updateMessage(QObject::tr("Scanning Files..."));
     QCoreApplication::processEvents();
 
+    QDateTime datetime;
+
+    QDateTime ignoreBefore = p_profile->session->ignoreOlderSessionsDate();
+    bool ignoreOldSessions = p_profile->session->ignoreOlderSessions();
+
     // for each p0/p1/p2/etc... folder
     for (int p=0; p < size; ++p) {
         dir.setPath(paths.at(p));
@@ -658,6 +664,14 @@ int PRS1Loader::OpenMachine(const QString & path)
                 continue;
             }
 
+            if (ignoreOldSessions) {
+                datetime = QDateTime::fromTime_t(sid);
+                if (datetime < ignoreBefore) {
+                    continue;
+                }
+            }
+
+
             if (m->SessionExists(sid)) {
                 // Skip already imported session
                 continue;
diff --git a/sleepyhead/SleepLib/loader_plugins/resmed_loader.cpp b/sleepyhead/SleepLib/loader_plugins/resmed_loader.cpp
index 14b04334..26d9c73c 100644
--- a/sleepyhead/SleepLib/loader_plugins/resmed_loader.cpp
+++ b/sleepyhead/SleepLib/loader_plugins/resmed_loader.cpp
@@ -118,6 +118,9 @@ void ResmedLoader::ParseSTR(Machine *mach, QMap<QDate, STRFile> & STRmap)
         return;
     }
 
+    QDateTime ignoreBefore = p_profile->session->ignoreOlderSessionsDate();
+    bool ignoreOldSessions = p_profile->session->ignoreOlderSessions();
+
     for (auto it=STRmap.begin(), end=STRmap.end(); it != end; ++it) {
         STRFile & file = it.value();
         QString & strfile = file.filename;
@@ -144,6 +147,11 @@ void ResmedLoader::ParseSTR(Machine *mach, QMap<QDate, STRFile> & STRmap)
 
         // For each data record, representing 1 day each
         for (int rec = 0; rec < size; ++rec, date = date.addDays(1)) {
+            if (ignoreOldSessions) {
+                if (date < ignoreBefore.date()) {
+                    continue;
+                }
+            }
 
             auto rit = resdayList.find(date);
             if (rit != resdayList.end()) {
@@ -1441,6 +1449,8 @@ int ResmedLoader::scanFiles(Machine * mach, const QString & datalog_path)
 
     int cnt = 0;
     // Scan through all folders looking for EDF files, skip any already imported and peek inside to get durations
+    QDateTime ignoreBefore = p_profile->session->ignoreOlderSessionsDate();
+    bool ignoreOldSessions = p_profile->session->ignoreOlderSessions();
 
     qDebug() << "Starting EDF duration scan pass";
     for (int i=0; i < totalfiles; ++i) {
@@ -1468,6 +1478,11 @@ int ResmedLoader::scanFiles(Machine * mach, const QString & datalog_path)
             date = date.addDays(-1);
         }
 
+        if (ignoreOldSessions) {
+            if (date < ignoreBefore.date())
+                continue;
+        }
+
         // Chop off the .gz component if it exists, it's not needed at this stage
         if (filename.endsWith(STR_ext_gz)) {
             filename.chop(3);
diff --git a/sleepyhead/SleepLib/machine.cpp b/sleepyhead/SleepLib/machine.cpp
index c27b9dd3..eca8fbff 100644
--- a/sleepyhead/SleepLib/machine.cpp
+++ b/sleepyhead/SleepLib/machine.cpp
@@ -234,8 +234,6 @@ bool Machine::AddSession(Session *s)
         return false;
     }
 
-    updateChannels(s);
-
     if (p_profile->session->ignoreOlderSessions()) {
         qint64 ignorebefore = p_profile->session->ignoreOlderSessionsDate().toMSecsSinceEpoch();
         if (s->last() < ignorebefore) {
@@ -244,6 +242,9 @@ bool Machine::AddSession(Session *s)
         }
     }
 
+
+    updateChannels(s);
+
     if (s->session() > highest_sessionid) {
         highest_sessionid = s->session();
     }
diff --git a/sleepyhead/SleepLib/machine_loader.cpp b/sleepyhead/SleepLib/machine_loader.cpp
index b0a52d5e..f303a8ae 100644
--- a/sleepyhead/SleepLib/machine_loader.cpp
+++ b/sleepyhead/SleepLib/machine_loader.cpp
@@ -219,10 +219,10 @@ void MachineLoader::runTasks(bool threaded)
             ImportTask * task = m_tasklist.takeFirst();
             task->run();
 
-            if ((m_currenttask++ % 10)==0) {
-                qprogress->setValue(m_currenttask);
-                QApplication::processEvents();
-            }
+            // update progress bar
+            m_currenttask++;
+            qprogress->setValue(m_currenttask);
+            QApplication::processEvents();
         }
     } else {
         ImportTask * task = m_tasklist[0];
@@ -239,10 +239,9 @@ void MachineLoader::runTasks(bool threaded)
                     task = m_tasklist[0];
 
                     // update progress bar
-                    if ((m_currenttask++ % 10) == 0) {
-                        qprogress->setValue(m_currenttask);
-                        QApplication::processEvents();
-                    }
+                    m_currenttask++;
+                    qprogress->setValue(m_currenttask);
+                    QApplication::processEvents();
                 } else {
                     // job list finished
                     break;
diff --git a/sleepyhead/SleepLib/progressdialog.cpp b/sleepyhead/SleepLib/progressdialog.cpp
index be624a1f..99e19972 100644
--- a/sleepyhead/SleepLib/progressdialog.cpp
+++ b/sleepyhead/SleepLib/progressdialog.cpp
@@ -9,7 +9,7 @@
 #include "progressdialog.h"
 
 ProgressDialog::ProgressDialog(QWidget * parent):
-    QDialog(parent, Qt::Popup)
+    QDialog(parent, Qt::Tool | Qt::FramelessWindowHint)
 {
     waitmsg = new QLabel(QObject::tr("PLease Wait..."));
     hlayout = new QHBoxLayout;
diff --git a/sleepyhead/mainwindow.cpp b/sleepyhead/mainwindow.cpp
index 72fe8b8c..12ace414 100644
--- a/sleepyhead/mainwindow.cpp
+++ b/sleepyhead/mainwindow.cpp
@@ -567,10 +567,10 @@ int MainWindow::importCPAP(ImportPath import, const QString &message)
     QProgressBar *saveQprogress = qprogress;
     qprogress = progdlg->progress;
 
-    progdlg->show();
+    progdlg->setWindowModality(Qt::ApplicationModal);
+    progdlg->open();
     progdlg->setMessage(message);
 
-    import.loader->setParent(this);
     connect(import.loader, SIGNAL(updateMessage(QString)), progdlg, SLOT(setMessage(QString)));
 
     int c = import.loader->Open(import.path);