diff --git a/includes/powder.h b/includes/powder.h
index 843ac0542..f30e87980 100644
--- a/includes/powder.h
+++ b/includes/powder.h
@@ -423,7 +423,7 @@ static const part_type ptypes[PT_NUM] =
     {"BOMB",	PIXPACK(0xFFF288),	0.6f,	0.01f * CFDS,	0.98f,	0.95f,	0.0f,	0.1f,	0.00f,	0.000f	* CFDS,	1,	0,		0,	0,	20,	1,	30,		SC_EXPLOSIVE,	R_TEMP-2.0f	+273.15f,	29,		"Bomb.", TYPE_PART, NULL},
     {"C-5",		PIXPACK(0x2050E0),	0.0f,	0.00f * CFDS,	0.90f,	0.00f,	0.0f,	0.0f,	0.00f,	0.000f	* CFDS,	0,	0,		0,	0,	1,	1,	100,	SC_EXPLOSIVE,	R_TEMP+0.0f	+273.15f,	88,		"Cold explosive", TYPE_SOLID | PROP_NEUTPENETRATE, NULL},
     {"SING",	PIXPACK(0x242424),	0.7f,	0.36f * CFDS,	0.96f,	0.80f,	0.1f,	0.12f,	0.00f,	-0.001f	* CFDS,	1,	0,		0,	0,	0,	1,	86,		SC_NUCLEAR,		R_TEMP+0.0f	+273.15f,	70,		"Singularity", TYPE_PART, NULL},
-    {"QRTZ",	PIXPACK(0xAADDDD),	0.0f,	0.00f * CFDS,	0.90f,	0.00f,	0.0f,	0.0f,	0.00f,	0.000f	* CFDS,	0,	0,		0,	0,	0,	1,	100,	SC_SOLIDS,		R_TEMP+0.0f	+273.15f,	3,		"Quartz, breakable mineral. Conducts but becomes brittle at lower temperatures.", TYPE_SOLID | PROP_CONDUCTS | PROP_HOT_GLOW, NULL}, 
+    {"QRTZ",	PIXPACK(0xAADDDD),	0.0f,	0.00f * CFDS,	0.90f,	0.00f,	0.0f,	0.0f,	0.00f,	0.000f	* CFDS,	0,	0,		0,	0,	0,	1,	100,	SC_SOLIDS,		R_TEMP+0.0f	+273.15f,	3,		"Quartz, breakable mineral. Conducts but becomes brittle at lower temperatures.", TYPE_SOLID | PROP_HOT_GLOW, NULL}, 
     {"PQRT",	PIXPACK(0x88BBBB),	0.4f,	0.04f * CFDS,	0.94f,	0.95f,	-0.1f,	0.27f,	0.00f,	0.000f	* CFDS,	1,	0,		0,	0,	0,	1,	90,		SC_POWDERS,		R_TEMP+0.0f	+273.15f,	3,		"Broken quartz.", TYPE_PART| PROP_HOT_GLOW, NULL}, 
     {"SEED",	PIXPACK(0xFBEC7D),	0.0f,	0.00f * CFDS,	0.90f,	0.00f,	0.0f,	0.0f,	0.00f,	0.000f	* CFDS,	0,	0,		0,	0,	0,	1,	100,	SC_LIFE,		9000.0f,				40,		"B2/S", TYPE_SOLID|PROP_LIFE, NULL},
     {"MAZE",	PIXPACK(0xA8E4A0),	0.0f,	0.00f * CFDS,	0.90f,	0.00f,	0.0f,	0.0f,	0.00f,	0.000f	* CFDS,	0,	0,		0,	0,	0,	1,	100,	SC_LIFE,		9000.0f,				40,		"B3/S12345", TYPE_SOLID|PROP_LIFE, NULL},
diff --git a/src/main.c b/src/main.c
index ba20752d9..96ecea337 100644
--- a/src/main.c
+++ b/src/main.c
@@ -487,6 +487,10 @@ int parse_save(void *save, int size, int replace, int x0, int y0)
         memset(vx, 0, sizeof(vx));
         memset(vy, 0, sizeof(vy));
         memset(pv, 0, sizeof(pv));
+	memset(photons, 0, sizeof(photons));
+	memset(wireless, 0, sizeof(wireless));
+	memset(gol2, 0, sizeof(gol2));
+	memset(portal, 0, sizeof(portal));
     }
 
     // make a catalog of free parts
@@ -1535,6 +1539,16 @@ int main(int argc, char *argv[])
 	if(sdl_key=='=')
 	{
 	    int nx, ny;
+	    if(sdl_mod & (KMOD_CTRL))
+	    {
+		for(i=0;i<NPART;i++)
+			if(parts[i].type==PT_SPRK)
+			{
+				parts[i].type = parts[i].ctype;
+				parts[i].life = 0;
+			}
+	    }
+	    else
 		for(nx = 0;nx<XRES/CELL;nx++)
 			for(ny = 0;ny<YRES/CELL;ny++)
 			{
@@ -2076,6 +2090,10 @@ int main(int argc, char *argv[])
                         memset(bmap, 0, sizeof(bmap));
                         memset(emap, 0, sizeof(emap));
                         memset(parts, 0, sizeof(particle)*NPART);
+			memset(photons, 0, sizeof(photons));
+			memset(wireless, 0, sizeof(wireless));
+			memset(gol2, 0, sizeof(gol2));
+			memset(portal, 0, sizeof(portal));
                         for(i=0; i<NPART-1; i++)
                             parts[i].life = i+1;
                         parts[NPART-1].life = -1;
@@ -2132,10 +2150,6 @@ int main(int argc, char *argv[])
                     if(x>=19 && x<=35 && svf_last && svf_open && !bq){
 						//int tpval = sys_pause;
 						parse_save(svf_last, svf_lsize, 1, 0, 0);
-						for(j= 0;j<99;j++){ //reset wifi on reload
-							wireless[j][0] = 0;
-							wireless[j][1] = 0;
-						}
 						//sys_pause = tpval;
 					}
                     if(x>=(XRES+BARSIZE-(510-476)) && x<=(XRES+BARSIZE-(510-491)) && !bq)
diff --git a/src/powder.c b/src/powder.c
index 2d9a6d014..27b48faa0 100644
--- a/src/powder.c
+++ b/src/powder.c
@@ -583,8 +583,6 @@ inline int create_part(int p, int x, int y, int t)
 				}
 			}
 		}
-	if(photons[y][x] && t==PT_PHOT)
-		return -1;
 	if(pfree == -1)
             return -1;
         i = pfree;
@@ -876,6 +874,7 @@ static void create_gain_photon(int pp)
     parts[i].vy = parts[pp].vy;
     parts[i].temp = parts[pmap[ny][nx] >> 8].temp;
     parts[i].tmp = 0;
+    photons[ny][nx] = PT_PHOT|(i<<8);
 
     temp_bin = (int)((parts[i].temp-273.0f)*0.25f);
     if(temp_bin < 0) temp_bin = 0;
@@ -911,6 +910,7 @@ static void create_cherenkov_photon(int pp)
     parts[i].y = parts[pp].y;
     parts[i].temp = parts[pmap[ny][nx] >> 8].temp;
     parts[i].tmp = 0;
+    photons[ny][nx] = PT_PHOT|(i<<8);
 
     if(lr) {
         parts[i].vx = parts[pp].vx - 2.5f*parts[pp].vy;
@@ -1112,7 +1112,7 @@ int nearest_part(int ci, int t)
 
 void update_particles_i(pixel *vid, int start, int inc)
 {
-    int i, j, x, y, t, nx, ny, r, a, s, lt, rt, fe, nt, lpv, nearp, pavg, nnx, nny, q, golnum, goldelete, z, ctype, temp, trade, docontinue, nxx, nyy, nxi, nyi;
+    int i, j, x, y, t, nx, ny, r, a, s, lt, rt, fe, nt, lpv, nearp, pavg, nnx, nny, q, golnum, goldelete, z, ctype, temp, trade, docontinue, nxx, nyy, nxi, nyi, neighbors;
     float mv, dx, dy, ix, iy, lx, ly, d, pp, nrx, nry, dp, rr, rrr;
     float nn, ct1, ct2;
     float pt = R_TEMP;
@@ -1308,7 +1308,7 @@ void update_particles_i(pixel *vid, int start, int inc)
 		  for(ny=CELL;ny<YRES-CELL;ny++)
 		{
 			r = pmap[ny][nx];
-			int neighbors = gol2[nx][ny][0];
+			neighbors = gol2[nx][ny][0];
 			if(neighbors==0 || !(ptypes[r&0xFF].properties&PROP_LIFE || !r&0xFF) || (r>>8)>=NPART)
 				continue;
 			for( golnum = 1;golnum<NGOL;golnum++)