diff --git a/src/serverlogging.cpp b/src/serverlogging.cpp
index 8bb4cd48..af59878c 100755
--- a/src/serverlogging.cpp
+++ b/src/serverlogging.cpp
@@ -47,7 +47,7 @@ CHistoryGraph::CHistoryGraph() :
     PlotTextColor ( Qt::black ), // black text
     PlotMarkerNewColor ( Qt::blue ), // blue marker for new connection
     PlotMarkerStopColor ( Qt::red ), // red marker server stop
-    PlotPixmap ( 1, 1 )
+    PlotPixmap ( 1, 1, QImage::Format_RGB32 )
 {
     // generate plot grid frame rectangle
     PlotGridFrame.setCoords ( PlotCanvasRect.x() + iGridFrameOffset,
@@ -91,7 +91,7 @@ void CHistoryGraph::DrawFrame ( const int iNewNumTicksX )
     iNumTicksX = iNewNumTicksX;
 
     // clear base pixmap for new plotting
-    PlotPixmap.fill ( PlotBackgroundColor ); // fill background
+    PlotPixmap.fill ( PlotBackgroundColor.rgb() ); // fill background
 
     // create painter
     QPainter PlotPainter ( &PlotPixmap );
diff --git a/src/serverlogging.h b/src/serverlogging.h
index 9f97fe40..e6af1098 100755
--- a/src/serverlogging.h
+++ b/src/serverlogging.h
@@ -25,7 +25,7 @@
 #if !defined ( SERVERLOGGING_HOIHOKIH83JH8_3_43445KJIUHF1912__INCLUDED_ )
 #define SERVERLOGGING_HOIHOKIH83JH8_3_43445KJIUHF1912__INCLUDED_
 
-#include <qpixmap.h>
+#include <qimage.h>
 #include <qpainter.h>
 #include <qdatetime.h>
 #include <qhostaddress.h>
@@ -77,7 +77,7 @@ protected:
     QColor  PlotMarkerNewColor;
     QColor  PlotMarkerStopColor;
     QDate   curDate;
-    QPixmap PlotPixmap;
+    QImage  PlotPixmap;
     QRect   PlotCanvasRect;
     QRect   PlotGridFrame;
     QString sFileName;