--- a/QTfrontend/SquareLabel.h	Sat Mar 06 10:54:24 2010 +0000
+++ b/QTfrontend/SquareLabel.h	Sat Mar 06 10:59:20 2010 +0000
@@ -24,17 +24,17 @@
 
 class SquareLabel : public QWidget
 {
-	Q_OBJECT
+    Q_OBJECT
 
 public:
-	SquareLabel(QWidget * parent = 0);
+    SquareLabel(QWidget * parent = 0);
 
-	void setPixmap(const QPixmap & pixmap);
+    void setPixmap(const QPixmap & pixmap);
 protected:
-	virtual void paintEvent(QPaintEvent * event);
+    virtual void paintEvent(QPaintEvent * event);
 
 private:
-	QPixmap pixmap;
+    QPixmap pixmap;
 
 };