diff -r b5df72b194f4 -r 8d4b8a9df724 src/ldpaths.cpp
--- a/src/ldpaths.cpp	Thu Mar 09 00:40:07 2017 +0200
+++ b/src/ldpaths.cpp	Thu Mar 09 00:54:45 2017 +0200
@@ -21,25 +21,33 @@
 #include "mainwindow.h"
 #include "dialogs/ldrawpathdialog.h"
 
-LDPaths::LDPaths (Configuration *config, QObject* parent) :
-	QObject(parent),
-	m_config(config),
-	m_dialog(nullptr) {}
+LDPaths::LDPaths(QObject* parent) :
+    QObject {parent},
+    m_dialog {nullptr} {}
 
+LDPaths::~LDPaths()
+{
+	delete m_dialog;
+}
 
-void LDPaths::checkPaths()
+bool LDPaths::checkPaths()
 {
-	QString pathconfig = m_config->lDrawPath();
+	QString pathconfig = configuration().lDrawPath();
 
-	if (not configurePaths (pathconfig))
+	if (configurePaths (pathconfig))
+	{
+		return true;
+	}
+	else
 	{
 		m_dialog = new LDrawPathDialog (pathconfig, false);
 		connect(m_dialog, &LDrawPathDialog::pathChanged, this, &LDPaths::configurePaths);
 
 		if (m_dialog->exec() != QDialog::Accepted)
-			exit(1);
-		else
-			m_config->setLDrawPath(m_dialog->path());
+			return false;
+
+		configuration().setLDrawPath(m_dialog->path());
+		return true;
 	}
 }
 
@@ -70,19 +78,19 @@
 
 bool LDPaths::configurePaths (QString path)
 {
-	QDir dir (path);
-	bool ok = isValid (dir);
+	QDir dir {path};
+	bool ok = isValid(dir);
 
 	if (ok)
 	{
 		baseDir() = dir;
-		ldConfigPath() = format ("%1" DIRSLASH "LDConfig.ldr", path);
-		partsDir() = QDir (path + DIRSLASH "parts");
-		primitivesDir() = QDir (path + DIRSLASH "p");
+		ldConfigPath() = format("%1/LDConfig.ldr", path);
+		partsDir() = path + "/parts";
+		primitivesDir() = path + "/p";
 	}
 
 	if (m_dialog)
-		m_dialog->setStatusText (m_error.isEmpty() ? "OK" : m_error, ok);
+		m_dialog->setStatusText(m_error.isEmpty() ? "OK" : m_error, ok);
 
 	return ok;
 }