diff --git a/sources/diagramprintdialog.cpp b/sources/diagramprintdialog.cpp
index 189e1051b..1981f47a1 100644
--- a/sources/diagramprintdialog.cpp
+++ b/sources/diagramprintdialog.cpp
@@ -121,7 +121,12 @@ void DiagramPrintDialog::exec() {
 	}
 	
 	// Apercu avant impression
+#if defined Q_WS_X11
+	// suite a quelques soucis avec xfwm, on se contente d'une fenetre sous X11
+	QETPrintPreviewDialog preview_dialog(project_, printer_, parentWidget(), Qt::Window);
+#else
 	QETPrintPreviewDialog preview_dialog(project_, printer_, parentWidget());
+#endif
 	connect(
 		&preview_dialog,
 		SIGNAL(paintRequested(const QList<Diagram *> &, bool, const ExportProperties, QPrinter *)),
diff --git a/sources/qetprintpreviewdialog.cpp b/sources/qetprintpreviewdialog.cpp
index f47ddf73c..6be56410e 100644
--- a/sources/qetprintpreviewdialog.cpp
+++ b/sources/qetprintpreviewdialog.cpp
@@ -41,7 +41,7 @@ QETPrintPreviewDialog::QETPrintPreviewDialog(QETProject *project, QPrinter *prin
 	connect(diagrams_list_, SIGNAL(selectionChanged()),         preview_, SLOT(updatePreview()));
 	connect(diagrams_list_, SIGNAL(selectionChanged()),         this,     SLOT(checkDiagramsCount()));
 	
-	setWindowState(Qt::WindowMaximized);
+	setWindowState(windowState() |  Qt::WindowMaximized);
 }
 
 /**