diff --git a/pglab/MainWindow.cpp b/pglab/MainWindow.cpp
index 0911c8e..00cae59 100644
--- a/pglab/MainWindow.cpp
+++ b/pglab/MainWindow.cpp
@@ -57,9 +57,8 @@ void MainWindow::setConfig(const ConnectionConfig &config)
 	m_config = config;
 	try	{
 		auto res = OpenDatabase::createOpenDatabase(config);
-		if (res.valid()) {
-			m_database = res.get();
-		}
+		//if (res.valid()) {
+		m_database = res.get();
 		QString title = "pglab - ";
 		title += m_config.name().c_str();
 		setWindowTitle(title);
@@ -71,9 +70,14 @@ void MainWindow::setConfig(const ConnectionConfig &config)
 
 		newSqlPage();
 	} catch (std::runtime_error &ex) {
-		QMessageBox msgBox;
-		msgBox.setText(QString::fromUtf8(ex.what()));
-		msgBox.exec();
+//		QMessageBox msgBox;
+//		msgBox.setText(QString::fromUtf8(ex.what()));
+//		msgBox.exec();
+
+		QMessageBox::critical(this, "Error reading database",
+							  QString::fromUtf8(ex.what()));
+
+		close();
 	}
 }