AliMUONPainterRegistry* AliMUONPainterRegistry::fgInstance(0x0);
//_____________________________________________________________________________
-AliMUONPainterRegistry::AliMUONPainterRegistry() : TObject(),
+AliMUONPainterRegistry::AliMUONPainterRegistry() : TObject(), TQObject(),
fDataSources(new TObjArray),
fPainterMatrices(new TObjArray),
fDataReaders(new TObjArray),