diff --git a/opengl-dlp-stereo.cabal b/opengl-dlp-stereo.cabal
--- a/opengl-dlp-stereo.cabal
+++ b/opengl-dlp-stereo.cabal
@@ -1,5 +1,5 @@
 name:                opengl-dlp-stereo
-version:             0.1.5.2
+version:             0.1.5.4
 synopsis:            Library and example for using DLP stereo in OpenGL
 description:         This package contains functions for rendering 3D stereo using DLP 3-D Ready Sync projectors and active-shutter stereo glasses.  It also includes a sample application (see \<<https://youtu.be/l3rZbMB2XjM>\>) and notes regarding hardware setup for DLP.  In particular, note that this technique does not require a graphics card that supports @GL_STEREO@.  This package also works with VR systems such as Google Cardboard \<<https://www.google.com/get/cardboard/>\>.
 
@@ -7,25 +7,25 @@
 license-file:        LICENSE
 author:              Brian W Bush <consult@brianwbush.info>
 maintainer:          Brian W Bush <consult@brianwbush.info>
-copyright:           (c) 2015 Brian W Bush
+copyright:           (c) 2015-2016 Brian W Bush
 category:            Graphics
 build-type:          Simple
 cabal-version:       >= 1.10
 stability:           Stable
-homepage:            https://bitbucket.org/bwbush/opengl-dlp-stereo
+homepage:            https://bitbucket.org/functionally/opengl-dlp-stereo
 bug-reports:         https://bwbush.atlassian.net/projects/HOGLDLP/issues/
-package-url:         https://bitbucket.org/bwbush/opengl-dlp-stereo/downloads/opengl-dlp-stereo-0.1.5.2.tar.gz
+package-url:         https://bitbucket.org/functionally/opengl-dlp-stereo/downloads/opengl-dlp-stereo-0.1.5.4.tar.gz
 
 extra-source-files:  ReadMe.md
 
 source-repository head
   type: git
-  location: https://bwbush@bitbucket.org/bwbush/opengl-dlp-stereo.git
+  location: https://bitbucket.org/functionally/opengl-dlp-stereo.git
  
 library
   exposed-modules:  Graphics.Rendering.DLP
                     Graphics.Rendering.DLP.Callbacks
-  build-depends:    base         >= 4.8.1 && < 5
+  build-depends:    base         >= 4.8 && < 5
                ,    data-default >= 0.5.3
                ,    GLUT         >= 2.7.0.1
                ,    OpenGL       >= 2.12.0.1
diff --git a/src/Graphics/Rendering/DLP.hs b/src/Graphics/Rendering/DLP.hs
--- a/src/Graphics/Rendering/DLP.hs
+++ b/src/Graphics/Rendering/DLP.hs
@@ -182,7 +182,7 @@
 drawDlp dlp =
   do
     DlpState encoding _ <- get dlp
-    unless (encoding `elem` [LeftOnly, RightOnly]) $ do
+    unless (encoding `elem` [LeftOnly, RightOnly, QuadBuffer]) $ do
       (Position x0 y0, Size w h) <- get viewport
       color <- dlpColor' dlp
       let
diff --git a/src/Graphics/Rendering/DLP/Callbacks.hs b/src/Graphics/Rendering/DLP/Callbacks.hs
--- a/src/Graphics/Rendering/DLP/Callbacks.hs
+++ b/src/Graphics/Rendering/DLP/Callbacks.hs
@@ -120,7 +120,7 @@
 doQuad :: IORef DlpState  -- ^ A reference to the DLP state.
        -> DlpDisplay      -- ^ The display information.
        -> DisplayCallback -- ^ The display callback.
-doQuad dlpRef DlpDisplay{..} =
+doQuad _ DlpDisplay{..} =
   do
     sequence_
       [
@@ -129,7 +129,6 @@
           preDisplay
           doDisplay eye
           postDisplay
-          drawDlp dlpRef
       |
         (eye, buffer) <- zip [LeftDlp, RightDlp] [BackLeftBuffer, BackRightBuffer]
       ]