diff --git a/Installer/Graphics/Side.bmp b/Installer/Graphics/Side.bmp
index 660daaf2..ab4b3dec 100644
Binary files a/Installer/Graphics/Side.bmp and b/Installer/Graphics/Side.bmp differ
diff --git a/Installer/Graphics/Top.bmp b/Installer/Graphics/Top.bmp
index 2be52805..d9a3f93b 100644
Binary files a/Installer/Graphics/Top.bmp and b/Installer/Graphics/Top.bmp differ
diff --git a/Installer/installer.nsi b/Installer/installer.nsi
index 1852f24f..a9b35b56 100644
--- a/Installer/installer.nsi
+++ b/Installer/installer.nsi
@@ -15,7 +15,7 @@
   Name "${PRODUCT_NAME} ${PRODUCT_VERSION} ${PRODUCT_STAGE}"
   OutFile "VocaluxeSetup_${PRODUCT_VERSION}${PRODUCT_STAGE}.exe"
   BrandingText "Vocaluxe Team 2013"
-  
+
   InstallDirRegKey HKCU "Software\Vocaluxe" ""
 
   RequestExecutionLevel admin
@@ -29,6 +29,8 @@
   !define MUI_UNICON "..\Output\Vocaluxe.ico"
   !define MUI_HEADERIMAGE
   !define MUI_HEADERIMAGE_RIGHT
+  !define MUI_HEADERIMAGE_BITMAP_NOSTRETCH
+  !define MUI_HEADERIMAGE_UNBITMAP_NOSTRETCH
   !define MUI_HEADERIMAGE_BITMAP "Graphics\Top.bmp"
   !define MUI_HEADERIMAGE_UNBITMAP "Graphics\Top.bmp"
   !define MUI_WELCOMEFINISHPAGE_BITMAP "Graphics\Side.bmp"