diff --git a/ECTrainer2/ECTrainer.h b/ECTrainer2/ECTrainer.h
index fc5e269..fe83516 100644
--- a/ECTrainer2/ECTrainer.h
+++ b/ECTrainer2/ECTrainer.h
@@ -30,3 +30,4 @@
 	bool IsRunning() { return _Running; }
 	void Stop() { _Running = false; }
 };
+
diff --git a/ECTrainer2/ECTrainerGUI.cpp b/ECTrainer2/ECTrainerGUI.cpp
index bfd97f3..26e48c0 100644
--- a/ECTrainer2/ECTrainerGUI.cpp
+++ b/ECTrainer2/ECTrainerGUI.cpp
@@ -23,16 +23,24 @@
 	// �h���񎦃E�C���h�E
 	cv::namedWindow(WIN_DISP, cv::WINDOW_NORMAL | cv::WINDOW_OPENGL);
 	if (_Displays.size() > 1) {
+		// ���C�����j�^�̌���
+		int mainMonitor = 0, subMonitor = 1;
+		for (int i = 0; i < _Displays.size(); i++) {
+			if (_Displays[i].left == 0 && _Displays[i].top == 0) mainMonitor = i;
+			else subMonitor = i;
+		}
 		// �}���`���j�^�̏ꍇ �T�u��ʂŃt���X�N���[����
-		cv::moveWindow(WIN_DISP, _Displays[1].left, _Displays[1].top);
+		cv::moveWindow(WIN_DISP, _Displays[subMonitor].left, _Displays[subMonitor].top);
 		cv::setWindowProperty(WIN_DISP, cv::WND_PROP_FULLSCREEN, cv::WINDOW_FULLSCREEN);
-		_DispBuffer.create(cv::Size(_Displays[1].right - _Displays[1].left, 
-			_Displays[1].bottom - _Displays[1].top), CV_8UC3);
+		_DispBuffer.create(cv::Size(_Displays[subMonitor].right - _Displays[subMonitor].left,
+			_Displays[subMonitor].bottom - _Displays[subMonitor].top), CV_8UC3);
+		cv::moveWindow(WIN_MAIN, _Displays[mainMonitor].left + 100, _Displays[mainMonitor].top + 100);
 	}
 	else {
 		// �V���O�����j�^�̏ꍇ
 		cv::moveWindow(WIN_DISP, _Displays[0].left, _Displays[0].top);
 		_DispBuffer.create(cv::Size(640, 480), CV_8UC3);
+		cv::moveWindow(WIN_MAIN, _Displays[0].left + 100, _Displays[0].top + 100);
 	}
 	cv::Mat opening = cv::imread("../images/ECTrainerLogo640x91.png");
 	SetDispBuffer(opening);