diff --git a/CHANGELOG.txt b/CHANGELOG.txt
index 8c4670e88..246105f1c 100644
--- a/CHANGELOG.txt
+++ b/CHANGELOG.txt
@@ -3,6 +3,7 @@ D1X-Rebirth Changelog
 20100729
 --------
 main/automap.c, main/fuelcen.c, main/game.c, main/gamecntl.c, main/gameseq.c, main/menu.c, main/newmenu.c: Tidy up use of set_screen_mode
+arch/ogl/gr.c, arch/ogl/ogl.c: Using rather sane values for gluPerspective - fixing Z-Fighting bugs on Intel chips; in Fullscreen toggle, always apply new viewing values independent of Screen_mode
 
 20100728
 --------
diff --git a/arch/ogl/gr.c b/arch/ogl/gr.c
index f525ab387..0868a8809 100644
--- a/arch/ogl/gr.c
+++ b/arch/ogl/gr.c
@@ -113,7 +113,7 @@ int gr_toggle_fullscreen(void)
 {
 	gr_do_fullscreen(!ogl_fullscreen);
 
-	if (gl_initialized && Screen_mode != SCREEN_GAME) // update viewing values for menus
+	if (gl_initialized) // update viewing values for menus
 	{
 		glMatrixMode(GL_PROJECTION);
 		glLoadIdentity();
diff --git a/arch/ogl/ogl.c b/arch/ogl/ogl.c
index 105ae8b3d..d3d1dd85c 100644
--- a/arch/ogl/ogl.c
+++ b/arch/ogl/ogl.c
@@ -993,7 +993,7 @@ void ogl_start_frame(void){
 	glShadeModel(GL_SMOOTH);
 	glMatrixMode(GL_PROJECTION);
 	glLoadIdentity();//clear matrix
-	gluPerspective(90.0,1.0,0.01,1000000.0);
+	gluPerspective(90.0,1.0,1.0,1000.0);
 	glMatrixMode(GL_MODELVIEW);
 	glLoadIdentity();//clear matrix
 }