diff --git i/source/ogre/CarModel_Create.cpp w/source/ogre/CarModel_Create.cpp
index 834eac7..47ec647 100644
--- i/source/ogre/CarModel_Create.cpp
+++ w/source/ogre/CarModel_Create.cpp
@@ -130,7 +130,8 @@ void CarModel::Load(int startId)
 
 	///  load config .car
 	string pathCar;
-	pApp->gui->GetCarPath(&pathCar, 0, 0, sDirname, pApp->mClient);  // force orig for newtorked games
+  string empty;
+	pApp->gui->GetCarPath(&pathCar, &empty, &empty, sDirname, bool(pApp->mClient));  // force orig for newtorked games
 	LoadConfig(pathCar);
 	
 	
diff --git i/source/ogre/Gui_Tweak.cpp w/source/ogre/Gui_Tweak.cpp
index 76ed8e9..9444271 100644
--- i/source/ogre/Gui_Tweak.cpp
+++ w/source/ogre/Gui_Tweak.cpp
@@ -412,8 +412,8 @@ bool CGui::GetCarPath(std::string* pathCar,
 		pathUserD = PATHMANAGER::CarSimU() + "/" + pSet->game.sim_mode + "/cars/",
 		pathUser  = pathUserD + file;
 
-	if (pathSave)  *pathSave = pathUser;
-	if (pathSaveDir)  *pathSaveDir = pathUserD;
+	if (pathSave != "")  *pathSave = pathUser;
+	if (pathSaveDir != "")  *pathSaveDir = pathUserD;
 	
 	if (!forceOrig && PATHMANAGER::FileExists(pathUser))
 	{
diff --git i/source/vdrift/cartire.cpp w/source/vdrift/cartire.cpp
index dd6dd48..083fa0c 100644
--- i/source/vdrift/cartire.cpp
+++ w/source/vdrift/cartire.cpp
@@ -3,6 +3,7 @@
 #include "cardefs.h"
 //#include "../ogre/common/Def_Str.h"
 
+using namespace std;
 
 void CARTIRE::FindSigmaHatAlphaHat(Dbl load, Dbl & output_sigmahat, Dbl & output_alphahat, int iterations)
 {
diff --git i/source/vdrift/model_obj.cpp w/source/vdrift/model_obj.cpp
index 338d122..e67c1db 100644
--- i/source/vdrift/model_obj.cpp
+++ w/source/vdrift/model_obj.cpp
@@ -205,7 +205,7 @@ bool MODEL_OBJ::Save(const std::string & strFileName, std::ostream & error_outpu
 	std::ofstream f(strFileName.c_str());
 	if (!f)
 	{
-		error_output << "Error opening file for writing: " << error_output << endl;
+		error_output << "Error opening file for writing: " << endl;
 		return false;
 	}
 	
diff --git i/source/vdrift/texture.h w/source/vdrift/texture.h
index b21846a..c115fd6 100644
--- i/source/vdrift/texture.h
+++ w/source/vdrift/texture.h
@@ -125,7 +125,7 @@ class TEXTURELIBRARY
 		bool FileExists(const std::string & filename)
 		{
 			std::ifstream f(filename.c_str());
-			return f;
+			return bool(f);
 		}
 
 	public: