diff --git a/sleepyhead/Graphs/gGraphView.cpp b/sleepyhead/Graphs/gGraphView.cpp
index 1fb5f981..3643c640 100644
--- a/sleepyhead/Graphs/gGraphView.cpp
+++ b/sleepyhead/Graphs/gGraphView.cpp
@@ -715,12 +715,12 @@ void gGraphView::DrawTextQue(QPainter &painter)
 
                 pm=QPixmap(ww, hh);
 
-                int aaw1 = pm.width();
+                //int aaw1 = pm.width();
                 pm.fill(Qt::transparent);
 
                 QPainter imgpainter(&pm);
 
-                int aaw2 = pm.width();
+                //int aaw2 = pm.width();
                 imgpainter.setPen(q.color);
 
                 imgpainter.setFont(*q.font);
@@ -729,11 +729,11 @@ void gGraphView::DrawTextQue(QPainter &painter)
                 imgpainter.setRenderHint(QPainter::TextAntialiasing, true);
                 QRectF rect(0,0, ww, hh);
                 imgpainter.drawText(rect, q.flags, q.text);
-                int aaw3 = pm.width();
+                //int aaw3 = pm.width();
                 imgpainter.end();
 
                 QPixmapCache::insert(hstr, pm);
-                int aaw4 = pm.width();
+                //int aaw4 = pm.width();
                 strings_drawn_this_frame++;
             } else {
                 //cached
diff --git a/sleepyhead/Graphs/gdailysummary.cpp b/sleepyhead/Graphs/gdailysummary.cpp
index 5be2ba9d..db4e5296 100644
--- a/sleepyhead/Graphs/gdailysummary.cpp
+++ b/sleepyhead/Graphs/gdailysummary.cpp
@@ -102,7 +102,7 @@ void gDailySummary::SetDay(Day *day)
 
         ahi = day->calcAHI();
 
-        CPAPMode mode = (CPAPMode)round(day->settings_wavg(CPAP_Mode));
+        CPAPMode mode = (CPAPMode)(int)round(day->settings_wavg(CPAP_Mode));
 
         info.append(QObject::tr("%1: %2").arg(STR_TR_AHI).arg(day->calcAHI(),0,'f',2));
         info_background.append(QColor("orange"));
diff --git a/sleepyhead/SleepLib/calcs.cpp b/sleepyhead/SleepLib/calcs.cpp
index 0385461e..a07a2096 100644
--- a/sleepyhead/SleepLib/calcs.cpp
+++ b/sleepyhead/SleepLib/calcs.cpp
@@ -16,9 +16,6 @@
 #include "calcs.h"
 #include "profiles.h"
 
-extern double round(double number);
-
-
 bool SearchEvent(Session * session, ChannelID code, qint64 time, int dur, bool update=true)
 {
     qint64 t, start;
diff --git a/sleepyhead/SleepLib/loader_plugins/weinmann_loader.cpp b/sleepyhead/SleepLib/loader_plugins/weinmann_loader.cpp
index 8a0d6bd9..fcb4f6a9 100644
--- a/sleepyhead/SleepLib/loader_plugins/weinmann_loader.cpp
+++ b/sleepyhead/SleepLib/loader_plugins/weinmann_loader.cpp
@@ -94,7 +94,7 @@ const QString EventsOffset = "TID_Events_Offset";
 
 void HighPass(char * data, int samples, float cutoff, float dt)
 {
-    float Y[samples];
+    float *Y = new float [samples];
     for (int i=0; i < samples; ++i) Y[i] = 0.0f;
 
     Y[0] = ((unsigned char *)data)[0] ;
@@ -111,7 +111,7 @@ void HighPass(char * data, int samples, float cutoff, float dt)
     for (int i=0; i< samples; ++i) {
         data[i] = Y[i];
     }
-
+    delete Y;
 }
 
 int WeinmannLoader::Open(QString path)
@@ -146,7 +146,7 @@ int WeinmannLoader::Open(QString path)
 
     int size = WCD_Pin_Offset - WeekComplianceOffset;
 
-    unsigned char weekco[size];
+    quint8 * weekco = new quint8 [size];
     memset(weekco, 0, size);
     wmdata.seek(WeekComplianceOffset);
     wmdata.read((char *)weekco, size);
@@ -172,6 +172,8 @@ int WeinmannLoader::Open(QString path)
         p+=0x84;
     }
 
+    delete [] weekco;
+
 
     //////////////////////////////////////////////////////////////////////
     // Read Day Compliance Information....
@@ -180,7 +182,7 @@ int WeinmannLoader::Open(QString path)
     int comp_end = index[FlowOffset];
     int comp_size = comp_end - comp_start;
 
-    unsigned char comp[comp_size];
+    quint8 * comp = new quint8 [comp_size];
     memset((char *)comp, 0, comp_size);
 
     wmdata.seek(comp_start);
@@ -248,6 +250,8 @@ int WeinmannLoader::Open(QString path)
         p += 0xd6;
     }
 
+    delete [] comp;
+
     //////////////////////////////////////////////////////////////////////
     // Read Flow Waveform....
     //////////////////////////////////////////////////////////////////////
@@ -258,14 +262,14 @@ int WeinmannLoader::Open(QString path)
     wmdata.seek(flowstart);
 
     int flowsize = flowend - flowstart;
-    char data[flowsize];
+    char * data = new char [flowsize];
     memset((char *)data, 0, flowsize);
     wmdata.read((char *)data, flowsize);
 
     float dt = 1.0 / (1000.0 / flow_sample_duration); // samples per second
 
     // Centre Waveform using High Pass Filter
-    HighPass(data, flowsize, 0.1, dt);
+    HighPass(data, flowsize, 0.1f, dt);
 
     //////////////////////////////////////////////////////////////////////
     // Read Status....
@@ -275,7 +279,7 @@ int WeinmannLoader::Open(QString path)
     int st_end = index[PresOffset];
     int st_size = st_end - st_start;
 
-    char st[st_size];
+    char * st = new char [st_size];
     memset(st, 0, st_size);
 
     wmdata.seek(st_start);
@@ -290,7 +294,7 @@ int WeinmannLoader::Open(QString path)
     int pr_end = index[AMVOffset];
     int pr_size = pr_end - pr_start;
 
-    char pres[pr_size];
+    char * pres = new char [pr_size];
     memset(pres, 0, pr_size);
 
     wmdata.seek(pr_start);
@@ -304,7 +308,7 @@ int WeinmannLoader::Open(QString path)
     int mv_end = index[EventsOffset];
     int mv_size = mv_end - mv_start;
 
-    char mv[mv_size];
+    char * mv = new char [mv_size];
     memset(mv, 0, mv_size);
 
     wmdata.seek(mv_start);
@@ -318,13 +322,12 @@ int WeinmannLoader::Open(QString path)
     int ev_end = wmdata.size();
     int ev_size = ev_end - ev_start;
 
-    unsigned char ev[ev_size];
+    quint8 * ev = new quint8 [ev_size];
     memset((char *) ev, 0, ev_size);
 
     wmdata.seek(ev_start);
     wmdata.read((char *) ev, ev_size);
 
-
     //////////////////////////////////////////////////////////////////////
     // Process sessions
     //////////////////////////////////////////////////////////////////////
@@ -464,6 +467,12 @@ int WeinmannLoader::Open(QString path)
 
 
     }
+    delete [] data;
+    delete [] st;
+    delete [] pres;
+    delete [] mv;
+    delete [] ev;
+
     mach->Save();
 
     return 1;
diff --git a/sleepyhead/SleepLib/schema.cpp b/sleepyhead/SleepLib/schema.cpp
index 82fa07f3..267f00c7 100644
--- a/sleepyhead/SleepLib/schema.cpp
+++ b/sleepyhead/SleepLib/schema.cpp
@@ -583,10 +583,10 @@ Channel::Channel(ChannelID id, ChanType type, MachineType machtype, ScopeType sc
     m_order(255)
 {
     if (type == WAVEFORM) {
-        calc[Calc_Min] = ChannelCalc(id, Calc_Min, adjustcolor(color, 0.25, 1, 1.3), false);
-        calc[Calc_Middle] = ChannelCalc(id, Calc_Middle, adjustcolor(color, 1.3, 1, 1), false);
-        calc[Calc_Perc] = ChannelCalc(id, Calc_Perc, adjustcolor(color, 1.1, 1.2, 1), false);
-        calc[Calc_Max] = ChannelCalc(id, Calc_Max,  adjustcolor(color, 0.5, 1.2, 1), false);
+        calc[Calc_Min] = ChannelCalc(id, Calc_Min, adjustcolor(color, 0.25f, 1.0f, 1.3f), false);
+        calc[Calc_Middle] = ChannelCalc(id, Calc_Middle, adjustcolor(color, 1.3f, 1.0f, 1.0f), false);
+        calc[Calc_Perc] = ChannelCalc(id, Calc_Perc, adjustcolor(color, 1.1f, 1.2f, 1.0f), false);
+        calc[Calc_Max] = ChannelCalc(id, Calc_Max,  adjustcolor(color, 0.5f, 1.2f, 1.0f), false);
 
         calc[Calc_Zero] = ChannelCalc(id, Calc_Zero, Qt::red, false);
         calc[Calc_LowerThresh] = ChannelCalc(id, Calc_LowerThresh, Qt::blue, false);