diff --git a/maszyna.vcxproj b/maszyna.vcxproj
index 08e2ba9d..b5d1ae08 100644
--- a/maszyna.vcxproj
+++ b/maszyna.vcxproj
@@ -24,7 +24,7 @@
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
     <ConfigurationType>Application</ConfigurationType>
     <UseDebugLibraries>false</UseDebugLibraries>
-    <PlatformToolset>v120_xp</PlatformToolset>
+    <PlatformToolset>v140_xp</PlatformToolset>
   </PropertyGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
   <ImportGroup Label="ExtensionSettings">
@@ -39,7 +39,7 @@
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
     <TargetName>eu07++d</TargetName>
     <IntDir>$(SolutionDir)tmp\$(PlatformShortName)-$(Configuration)\$(ProjectName)\</IntDir>
-    <OutDir>E:\Gry\MaSzyna_15_04</OutDir>
+    <OutDir>E:\Gry\MaSzyna_15_04\</OutDir>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
     <TargetName>eu07++</TargetName>
@@ -118,6 +118,7 @@
     <ClCompile Include="Model3d.cpp" />
     <ClCompile Include="mtable.cpp" />
     <ClCompile Include="Names.cpp" />
+    <ClCompile Include="openglmatrixstack.cpp" />
     <ClCompile Include="parser.cpp" />
     <ClCompile Include="PyInt.cpp" />
     <ClCompile Include="RealSound.cpp" />
@@ -185,6 +186,7 @@
     <ClInclude Include="Model3d.h" />
     <ClInclude Include="mtable.h" />
     <ClInclude Include="Names.h" />
+    <ClInclude Include="openglmatrixstack.h" />
     <ClInclude Include="parser.h" />
     <ClInclude Include="PyInt.h" />
     <ClInclude Include="RealSound.h" />
diff --git a/uilayer.h b/uilayer.h
index 65bcfefe..59242670 100644
--- a/uilayer.h
+++ b/uilayer.h
@@ -76,7 +76,7 @@ private:
 
 
 // members:
-    GLuint m_fontbase{ -1 }; // numer DL dla znaków w napisach
+    GLuint m_fontbase{ static_cast<GLuint>(-1) }; // numer DL dla znaków w napisach
     float m_progress{ 0.0f };                // percentage of filled progres bar, to indicate lengthy operations.
     float m_subtaskprogress{ 0.0f };                // percentage of filled progres bar, to indicate lengthy operations.
     texture_manager::size_type m_background; // path to texture used as the background. size depends on mAspect.