diff --git a/source/terrain/Camera.cpp b/source/terrain/Camera.cpp
index 54f7be10a9..14e34e8530 100755
--- a/source/terrain/Camera.cpp
+++ b/source/terrain/Camera.cpp
@@ -11,8 +11,7 @@
 //***********************************************************
 
 #include "Camera.H"
-
-extern int xres, yres;
+#include "../ps/Prometheus.h"
 
 CCamera::CCamera ()
 {
diff --git a/source/terrain/Renderer.cpp b/source/terrain/Renderer.cpp
index dab5738e50..43782877c7 100755
--- a/source/terrain/Renderer.cpp
+++ b/source/terrain/Renderer.cpp
@@ -128,7 +128,7 @@ void CRenderer::RenderTerrain (CTerrain *terrain, CCamera *camera)
 	glLoadMatrixf (gl_proj);
 
 	SViewPort vp = camera->GetViewPort();
-	glViewport (vp.m_X, vp.m_Y, vp.m_Width, vp.m_Height);
+	//glViewport (vp.m_X, vp.m_Y, vp.m_Width, vp.m_Height);
 
 	if (g_WireFrame)
 		glPolygonMode (GL_FRONT_AND_BACK, GL_LINE);
diff --git a/source/terrain/terrainMain.cpp b/source/terrain/terrainMain.cpp
index 6418bf944b..11ea0f2c81 100755
--- a/source/terrain/terrainMain.cpp
+++ b/source/terrain/terrainMain.cpp
@@ -1,6 +1,7 @@
 #include "Matrix3D.H"
 #include "Renderer.H"
 #include "Terrain.H"
+#include "../ps/Prometheus.h"
 
 #include "time.h"
 #include "wsdl.h"
@@ -40,8 +41,6 @@ Handle AlphaMaps[NUM_ALPHA_MAPS];
 
 int mouse_x=50, mouse_y=50;
 
-extern int xres, yres;
-
 
 void terr_init()
 {
@@ -68,12 +67,12 @@ g_FrameCounter++;
 		right.Normalize ();
 		up.Normalize ();
 		
-		if (mouse_x >= xres-2)
+		if (mouse_x >= g_xres-2)
 			g_Camera.m_Orientation.Translate (right);
 		if (mouse_x <= 3)
 			g_Camera.m_Orientation.Translate (right*-1);
 
-		if (mouse_y >= yres-2)
+		if (mouse_y >= g_yres-2)
 			g_Camera.m_Orientation.Translate (up);
 		if (mouse_y <= 3)
 			g_Camera.m_Orientation.Translate (up*-1);