diff --git a/Makefile.win16 b/Makefile.win16
index b8343a9b..9392cc41 100644
--- a/Makefile.win16
+++ b/Makefile.win16
@@ -65,11 +65,10 @@ DEFINES_WIN16 := \
    $(DEFINES_DSEKAI) \
    $(DEFINES_DEPTH) \
    -DPLATFORM_WIN16 \
-   -DPLATFORM_WIN \
    -DNO_ENGINE_POV \
    -DUSE_SOFTWARE_TEXT \
-   -DSCREEN_W=320 \
-   -DSCREEN_H=200 \
+   -DSCREEN_W=160 \
+   -DSCREEN_H=160 \
    -DSCREEN_SCALE=2
 
 INCLUDES_WIN16 := \
diff --git a/Makefile.win32 b/Makefile.win32
index b19a525b..3395ba82 100644
--- a/Makefile.win32
+++ b/Makefile.win32
@@ -66,10 +66,9 @@ DEFINES_WIN32 := \
    $(DEFINES_DSEKAI) \
    $(DEFINES_DEPTH) \
    -DPLATFORM_WIN32 \
-   -DPLATFORM_WIN \
    -DUSE_SOFTWARE_TEXT \
-   -DSCREEN_W=320 \
-   -DSCREEN_H=200 \
+   -DSCREEN_W=160 \
+   -DSCREEN_H=160 \
    -DSCREEN_SCALE=2
 
 INCLUDES_WIN32 := \
diff --git a/src/pov.c b/src/pov.c
index f95e9788..aeacabf1 100644
--- a/src/pov.c
+++ b/src/pov.c
@@ -1,6 +1,8 @@
 
 #include "dsekai.h"
 
+#include <math.h>
+
 const double gc_pov_dir_x[4] = {
    /* SOUTH */
    0.0,
@@ -125,8 +127,10 @@ int16_t pov_input( char in_char, struct DSEKAI_STATE* state ) {
          &(state->player),
          mobile_get_facing( &(state->player), state ),
          &(state->map) );
+#ifdef POV_DEBUG_INC
       gstate->inc++;
       debug_printf( 3, "inc: %d", gstate->inc );
+#endif /* POV_DEBUG_INC */
       break;
    }
 
@@ -269,7 +273,11 @@ void pov_draw_wall_x(
       (ray->wall_side && 0 != ray->dir_y)
    ) {
       /* We're drawing a wall orthoganal to the viewer. */
-      tex_pos -= (2000 + gstate->inc) / (line_px_height);
+      tex_pos -= (2000
+#ifdef POV_DEBUG_INC
+         + gstate->inc
+#endif /* POV_DEBUG_INC */
+      ) / (line_px_height);
    }
 
    /* debug_printf( 3, "XXX" ); */
@@ -343,11 +351,9 @@ void pov_draw( struct DSEKAI_STATE* state ) {
 
    gstate = (struct POV_STATE*)memory_lock( state->engine_state_handle );
 
-   /*
    if( !(gstate->dirty) ) {
       goto cleanup;
    }
-   */
    
    memory_zero_ptr( gstate->minimap, TILEMAP_TH * TILEMAP_TW );