diff --git a/polymer/eduke32/source/actors.c b/polymer/eduke32/source/actors.c
index 471268dd9..207ce1d5e 100644
--- a/polymer/eduke32/source/actors.c
+++ b/polymer/eduke32/source/actors.c
@@ -962,7 +962,7 @@ void movedummyplayers(void)
 
         p = sprite[OW].yvel;
 
-        if (g_player[p].ps->on_crane >= 0 || sector[g_player[p].ps->cursectnum].lotag != 1 || sprite[g_player[p].ps->i].extra <= 0)
+        if (g_player[p].ps->on_crane >= 0 || (g_player[p].ps->cursectnum > -1 && sector[g_player[p].ps->cursectnum].lotag != 1) || sprite[g_player[p].ps->i].extra <= 0)
         {
             g_player[p].ps->dummyplayersprite = -1;
             KILLIT(i);
diff --git a/polymer/eduke32/source/game.c b/polymer/eduke32/source/game.c
index 886ad6f37..1892c2c7d 100644
--- a/polymer/eduke32/source/game.c
+++ b/polymer/eduke32/source/game.c
@@ -3174,8 +3174,8 @@ static void drawoverheadmap(int cposx, int cposy, int czoom, short cang)
             if (j < 22000) j = 22000;
             else if (j > (65536<<1)) j = (65536<<1);
 
-            rotatesprite((x1<<4)+(xdim<<15),(y1<<4)+(ydim<<15),j,
-                         daang,i,sprite[g_player[p].ps->i].shade,/*sprite[g_player[p].ps->i].pal*/sector[g_player[p].ps->cursectnum].floorpal,
+            rotatesprite((x1<<4)+(xdim<<15),(y1<<4)+(ydim<<15),j,daang,i,sprite[g_player[p].ps->i].shade,
+                (g_player[p].ps->cursectnum > -1)?sector[g_player[p].ps->cursectnum].floorpal:0,
                          (sprite[g_player[p].ps->i].cstat&2)>>1,windowx1,windowy1,windowx2,windowy2);
         }
     }
@@ -3412,11 +3412,14 @@ void displayrest(int smoothratio)
 
     SetGameVarID(g_iReturnVarID,0,g_player[screenpeek].ps->i,screenpeek);
     OnEvent(EVENT_DISPLAYSBAR, g_player[screenpeek].ps->i, screenpeek, -1);
+    i = usehightile;
+    if (r_downsize > 1)
+        usehightile = 0;
     if (GetGameVarID(g_iReturnVarID,g_player[screenpeek].ps->i,screenpeek) == 0)
         coolgaugetext(screenpeek);
 
     operatefta();
-
+    usehightile = i;
     if (KB_KeyPressed(sc_Escape) && ud.overhead_on == 0
             && ud.show_help == 0
             && g_player[myconnectindex].ps->newowner == -1)
@@ -4265,8 +4268,13 @@ int EGS(int whatsect,int s_x,int s_y,int s_z,int s_pn,int s_s,int s_xr,int s_yr,
     s->clipdist = 0;
     s->pal = 0;
     s->lotag = 0;
-
-    hittype[i].picnum = sprite[s_ow].picnum;
+    
+    if (s_ow > -1 && s_ow < MAXSPRITES)
+    {
+        hittype[i].picnum = sprite[s_ow].picnum;
+        hittype[i].floorz = hittype[s_ow].floorz;
+        hittype[i].ceilingz = hittype[s_ow].ceilingz;
+    }
 
     hittype[i].lastvx = 0;
     hittype[i].lastvy = 0;
@@ -4279,8 +4287,6 @@ int EGS(int whatsect,int s_x,int s_y,int s_z,int s_pn,int s_s,int s_xr,int s_yr,
     hittype[i].movflag = 0;
     hittype[i].tempang = 0;
     hittype[i].dispicnum = 0;
-    hittype[i].floorz = hittype[s_ow].floorz;
-    hittype[i].ceilingz = hittype[s_ow].ceilingz;
 
     T1=T3=T4=T6=T7=T8=T9=0;
 
diff --git a/polymer/eduke32/source/menus.c b/polymer/eduke32/source/menus.c
index 17dc756e5..83e36c443 100644
--- a/polymer/eduke32/source/menus.c
+++ b/polymer/eduke32/source/menus.c
@@ -2513,12 +2513,13 @@ cheat_for_port_credits:
                 {
                     i = r_downsize;
                     enabled = usehightile;
-                    _bar(1,d+8,yy+7, &r_downsize,-1,enabled && x==io,MENUHIGHLIGHT(io),!enabled,0,5);
+                    _bar(1,d+8,yy+7, &r_downsize,-1,enabled && x==io,MENUHIGHLIGHT(io),!enabled,0,2);
                     if (r_downsize != i)
                     {
                         resetvideomode();
                         if (setgamemode(fullscreen,xdim,ydim,bpp))
                             OSD_Printf("restartvid: Reset failed...\n");
+                        return;
                     }
                     break;
                 }
diff --git a/polymer/eduke32/source/player.c b/polymer/eduke32/source/player.c
index 95bb7352a..79cd3ee25 100644
--- a/polymer/eduke32/source/player.c
+++ b/polymer/eduke32/source/player.c
@@ -1743,6 +1743,7 @@ SKIPBULLETHOLE:
             k = 0;
 
             //            RESHOOTGROW:
+            if (sect < 0) break;
 
             s->cstat &= ~257;
             if (hittype[i].temp_data[9]) zvel = hittype[i].temp_data[9];
@@ -2113,7 +2114,7 @@ void displayweapon(int snum)
 {
     int gun_pos, looking_arc, cw;
     int weapon_xoffset, i, j;
-    int o = 0,pal;
+    int o = 0,pal = 0;
     player_struct *p = g_player[snum].ps;
     short *kb = &p->kickback_pic;
     int gs;
@@ -3970,7 +3971,7 @@ void processinput(int snum)
         else
         {
             if (p->footprintcount > 0 && p->on_ground)
-                if ((sector[p->cursectnum].floorstat&2) != 2)
+                if (p->cursectnum > -1 && (sector[p->cursectnum].floorstat&2) != 2)
                 {
                     for (j=headspritesect[psect];j>=0;j=nextspritesect[j])
                         if (sprite[j].picnum == FOOTPRINTS || sprite[j].picnum == FOOTPRINTS2 || sprite[j].picnum == FOOTPRINTS3 || sprite[j].picnum == FOOTPRINTS4)
@@ -3980,7 +3981,7 @@ void processinput(int snum)
                     if (j < 0)
                     {
                         p->footprintcount--;
-                        if (sector[p->cursectnum].lotag == 0 && sector[p->cursectnum].hitag == 0)
+                        if (p->cursectnum > -1 && sector[p->cursectnum].lotag == 0 && sector[p->cursectnum].hitag == 0)
                         {
                             switch (TRAND&3)
                             {
diff --git a/polymer/eduke32/source/sector.c b/polymer/eduke32/source/sector.c
index ac8efce1c..a15c4daa9 100644
--- a/polymer/eduke32/source/sector.c
+++ b/polymer/eduke32/source/sector.c
@@ -3044,16 +3044,19 @@ CHECKINV1:
                     {
                         p->inven_icon = 3;
 
-                        p->holoduke_on = i =
-                                             EGS(p->cursectnum,
-                                                 p->posx,
-                                                 p->posy,
-                                                 p->posz+(30<<8),APLAYER,-64,0,0,p->ang,0,0,-1,10);
-                        T4 = T5 = 0;
-                        SP = snum;
-                        sprite[i].extra = 0;
-                        FTA(47,p);
-                        spritesound(TELEPORTER,p->holoduke_on);
+                        if (p->cursectnum > -1)
+                        {
+                            p->holoduke_on = i =
+                                                 EGS(p->cursectnum,
+                                                     p->posx,
+                                                     p->posy,
+                                                     p->posz+(30<<8),APLAYER,-64,0,0,p->ang,0,0,-1,10);
+                            T4 = T5 = 0;
+                            SP = snum;
+                            sprite[i].extra = 0;
+                            FTA(47,p);
+                            spritesound(TELEPORTER,p->holoduke_on);
+                        }
                     }
                     else FTA(49,p);
                 }
diff --git a/polymer/eduke32/source/sounds.c b/polymer/eduke32/source/sounds.c
index d4b6f820a..fbb8063d6 100644
--- a/polymer/eduke32/source/sounds.c
+++ b/polymer/eduke32/source/sounds.c
@@ -338,7 +338,7 @@ int xyzsound(int num,int i,int x,int y,int z)
 
     sndist += g_sounds[num].vo;
     if (sndist < 0) sndist = 0;
-    if (sndist && PN != MUSICANDSFX && !cansee(cx,cy,cz-(24<<8),cs,SX,SY,SZ-(24<<8),SECT))
+    if (cs > -1 && sndist && PN != MUSICANDSFX && !cansee(cx,cy,cz-(24<<8),cs,SX,SY,SZ-(24<<8),SECT))
         sndist += sndist>>5;
 
     switch (num)
@@ -348,11 +348,11 @@ int xyzsound(int num,int i,int x,int y,int z)
     case RPG_EXPLODE:
         if (sndist > (6144))
             sndist = 6144;
-        if (sector[g_player[screenpeek].ps->cursectnum].lotag == 2)
+        if (g_player[screenpeek].ps->cursectnum > -1 && sector[g_player[screenpeek].ps->cursectnum].lotag == 2)
             pitch -= 1024;
         break;
     default:
-        if (sector[g_player[screenpeek].ps->cursectnum].lotag == 2 && (g_sounds[num].m&4) == 0)
+        if (g_player[screenpeek].ps->cursectnum > -1 && sector[g_player[screenpeek].ps->cursectnum].lotag == 2 && (g_sounds[num].m&4) == 0)
             pitch = -768;
         if (sndist > 31444 && PN != MUSICANDSFX)
             return -1;
@@ -605,7 +605,7 @@ void pan3dsound(void)
             sndist += g_sounds[j].vo;
             if (sndist < 0) sndist = 0;
 
-            if (sndist && PN != MUSICANDSFX && !cansee(cx,cy,cz-(24<<8),cs,sx,sy,sz-(24<<8),SECT))
+            if (cs > -1 && sndist && PN != MUSICANDSFX && !cansee(cx,cy,cz-(24<<8),cs,sx,sy,sz-(24<<8),SECT))
                 sndist += sndist>>5;
 
             if (PN == MUSICANDSFX && SLT < 999)