diff --git a/docs/rh-log.txt b/docs/rh-log.txt
index b2875688f..128520ac3 100644
--- a/docs/rh-log.txt
+++ b/docs/rh-log.txt
@@ -1,6 +1,13 @@
-September 5, 2009  (Changes by Graf Zahl)
+September 5, 2009  (Changes by Graf Zahl)
 - made menu dimming a mapping option but kept the CVARS as user override.
 
+September 4, 2009
+- Fixed: S_LoadSound() did not byte-swap the frequency and length it reads
+  from DMX sounds.
+- Fixed: PNGTexture must not use the FArchive >> operator as a short hand
+  for reading 4-byte integers, because that operator works with little
+  endian numbers--a no-op on Intel processors, but bad joojoo on PowerPCs.
+
 September 3, 2009  (Changes by Graf Zahl)
 - fixed: Weapons must first check if they can be switched and afterwards
   if they can be fired. These checks were reversed.
diff --git a/src/m_png.cpp b/src/m_png.cpp
index 1a33221e2..4c329815f 100644
--- a/src/m_png.cpp
+++ b/src/m_png.cpp
@@ -181,7 +181,7 @@ bool M_CreatePNG (FILE *file, const BYTE *buffer, const PalEntry *palette,
 //
 // M_CreateDummyPNG
 //
-// Like M_CreatePNG, but the image is always a grayscale 1x1 blacksquare.
+// Like M_CreatePNG, but the image is always a grayscale 1x1 black square.
 //
 //==========================================================================
 
diff --git a/src/s_sound.cpp b/src/s_sound.cpp
index a766affcd..099565925 100644
--- a/src/s_sound.cpp
+++ b/src/s_sound.cpp
@@ -1255,7 +1255,7 @@ sfxinfo_t *S_LoadSound(sfxinfo_t *sfx)
 			FWadLump wlump = Wads.OpenLumpNum(sfx->lumpnum);
 			sfxstart = sfxdata = new BYTE[size];
 			wlump.Read(sfxdata, size);
-			SDWORD len = ((SDWORD *)sfxdata)[1];
+			SDWORD len = LittleLong(((SDWORD *)sfxdata)[1]);
 
 			// If the sound is raw, just load it as such.
 			// Otherwise, try the sound as DMX format.
@@ -1272,7 +1272,7 @@ sfxinfo_t *S_LoadSound(sfxinfo_t *sfx)
 				}
 				else
 				{
-					frequency = ((WORD *)sfxdata)[1];
+					frequency = LittleShort(((WORD *)sfxdata)[1]);
 					if (frequency == 0)
 					{
 						frequency = 11025;
diff --git a/src/textures/bitmap.cpp b/src/textures/bitmap.cpp
index 702b2b5f5..c985e1494 100644
--- a/src/textures/bitmap.cpp
+++ b/src/textures/bitmap.cpp
@@ -131,7 +131,7 @@ void iCopyColors(BYTE *pout, const BYTE *pin, int count, int step, FCopyInfo *in
 		break;
 
 	case BLEND_GREENMAP:
-		// Skulltags's Guardsphere map
+		// Skulltag's Guardsphere map
 		for(i=0;i<count;i++)
 		{
 			a = TSrc::A(pin);
diff --git a/src/textures/patchtexture.cpp b/src/textures/patchtexture.cpp
index abb1b9b8d..12ef31bcb 100644
--- a/src/textures/patchtexture.cpp
+++ b/src/textures/patchtexture.cpp
@@ -81,7 +81,7 @@ static bool CheckIfPatch(FileReader & file)
 	file.Seek(0, SEEK_SET);
 	file.Read(data, file.GetLength());
 	
-	const patch_t * foo = (const patch_t *)data;
+	const patch_t *foo = (const patch_t *)data;
 	
 	int height = LittleShort(foo->height);
 	int width = LittleShort(foo->width);
diff --git a/src/textures/pngtexture.cpp b/src/textures/pngtexture.cpp
index 253014070..26e552de4 100644
--- a/src/textures/pngtexture.cpp
+++ b/src/textures/pngtexture.cpp
@@ -115,8 +115,9 @@ FTexture *PNGTexture_TryCreate(FileReader & data, int lumpnum)
 
 	// The PNG looks valid so far. Check the IHDR to make sure it's a
 	// type of PNG we support.
-	data >> width >> height
-		 >> bitdepth >> colortype >> compression >> filter >> interlace;
+	data.Read(&width, 4);
+	data.Read(&height, 4);
+	data >> bitdepth >> colortype >> compression >> filter >> interlace;
 
 	if (compression != 0 || filter != 0 || interlace > 1)
 	{
@@ -164,8 +165,9 @@ FTexture *PNGTexture_CreateFromFile(PNGHandle *png, const FString &filename)
 	}
 
 	// Check the IHDR to make sure it's a type of PNG we support.
-	(*png->File) >> width >> height
-		 >> bitdepth >> colortype >> compression >> filter >> interlace;
+	png->File->Read(&width, 4);
+	png->File->Read(&height, 4);
+	(*png->File) >> bitdepth >> colortype >> compression >> filter >> interlace;
 
 	if (compression != 0 || filter != 0 || interlace > 1)
 	{
@@ -215,12 +217,13 @@ FPNGTexture::FPNGTexture (FileReader &lump, int lumpnum, const FString &filename
 	Height = height;
 	CalcBitSize ();
 
-	memset (trans, 255, 256);
+	memset(trans, 255, 256);
 
 	// Parse pre-IDAT chunks. I skip the CRCs. Is that bad?
-	lump.Seek (33, SEEK_SET);
+	lump.Seek(33, SEEK_SET);
 
-	lump >> len >> id;
+	lump.Read(&len, 4);
+	lump.Read(&id, 4);
 	while (id != MAKE_ID('I','D','A','T') && id != MAKE_ID('I','E','N','D'))
 	{
 		len = BigLong((unsigned int)len);
@@ -236,7 +239,8 @@ FPNGTexture::FPNGTexture (FileReader &lump, int lumpnum, const FString &filename
 				DWORD hotx, hoty;
 				int ihotx, ihoty;
 				
-				lump >> hotx >> hoty;
+				lump.Read(&hotx, 4);
+				lump.Read(&hoty, 4);
 				ihotx = BigLong((int)hotx);
 				ihoty = BigLong((int)hoty);
 				if (ihotx < -32768 || ihotx > 32767)
@@ -249,8 +253,8 @@ FPNGTexture::FPNGTexture (FileReader &lump, int lumpnum, const FString &filename
 					Printf ("Y-Offset for PNG texture %s is bad: %d (0x%08x)\n", Wads.GetLumpFullName (lumpnum), ihoty, ihoty);
 					ihoty = 0;
 				}
-				LeftOffset = (int)ihotx;
-				TopOffset = (int)ihoty;
+				LeftOffset = ihotx;
+				TopOffset = ihoty;
 			}
 			break;
 
@@ -277,9 +281,10 @@ FPNGTexture::FPNGTexture (FileReader &lump, int lumpnum, const FString &filename
 			bMasked = true;
 			break;
 		}
-		lump >> len >> len;	// Skip CRC
+		lump.Seek(4, SEEK_CUR);		// Skip CRC
+		lump.Read(&len, 4);
 		id = MAKE_ID('I','E','N','D');
-		lump >> id;
+		lump.Read(&id, 4);
 	}
 	StartOfIDAT = lump.Tell() - 8;
 
@@ -460,7 +465,8 @@ void FPNGTexture::MakeTexture ()
 	{
 		DWORD len, id;
 		lump->Seek (StartOfIDAT, SEEK_SET);
-		(*lump) >> len >> id;
+		lump->Read(&len, 4);
+		lump->Read(&id, 4);
 
 		if (ColorType == 0 || ColorType == 3)	/* Grayscale and paletted */
 		{
@@ -583,9 +589,9 @@ int FPNGTexture::CopyTrueColorPixels(FBitmap *bmp, int x, int y, int w, int h, i
 	PalEntry pe[256];
 	DWORD len, id;
 	FileReader *lump;
-	static char bpp[]={1, 0, 3, 1, 2, 0, 4};
+	static char bpp[] = {1, 0, 3, 1, 2, 0, 4};
 	int pixwidth = Width * bpp[ColorType];
-	int transpal=false;
+	int transpal = false;
 
 	if (w < 0 || w > Width) w = Width;
 	if (h < 0 || h > Height) h = Height;
@@ -599,10 +605,12 @@ int FPNGTexture::CopyTrueColorPixels(FBitmap *bmp, int x, int y, int w, int h, i
 		lump = new FileReader(SourceFile.GetChars());
 	}
 
-	lump->Seek (33, SEEK_SET);
-	for(int i=0;i<256;i++) pe[i]=PalEntry(255,i,i,i);	// default to a gray map
+	lump->Seek(33, SEEK_SET);
+	for(int i = 0; i < 256; i++)	// default to a gray map
+		pe[i] = PalEntry(255,i,i,i);
 
-	(*lump) >> len >> id;
+	lump->Read(&len, 4);
+	lump->Read(&id, 4);
 	while (id != MAKE_ID('I','D','A','T') && id != MAKE_ID('I','E','N','D'))
 	{
 		len = BigLong((unsigned int)len);
@@ -613,29 +621,32 @@ int FPNGTexture::CopyTrueColorPixels(FBitmap *bmp, int x, int y, int w, int h, i
 			break;
 
 		case MAKE_ID('P','L','T','E'):
-			for(int i=0;i<PaletteSize;i++)
+			for(int i = 0; i < PaletteSize; i++)
 			{
 				(*lump) >> pe[i].r >> pe[i].g >> pe[i].b;
 			}
 			break;
 
 		case MAKE_ID('t','R','N','S'):
-			for(DWORD i=0;i<len;i++)
+			for(DWORD i = 0; i < len; i++)
 			{
 				(*lump) >> pe[i].a;
-				if (pe[i].a!=0 && pe[i].a!=255) transpal = true;
+				if (pe[i].a != 0 && pe[i].a != 255)
+					transpal = true;
 			}
 			break;
 		}
-		(*lump) >> len >> len;	// Skip CRC
+		lump->Seek(4, SEEK_CUR);		// Skip CRC
+		lump->Read(&len, 4);
 		id = MAKE_ID('I','E','N','D');
-		(*lump) >> id;
+		lump->Read(&id, 4);
 	}
 
 	BYTE * Pixels = new BYTE[pixwidth * Height];
 
 	lump->Seek (StartOfIDAT, SEEK_SET);
-	(*lump) >> len >> id;
+	lump->Read(&len, 4);
+	lump->Read(&len, 4);
 	M_ReadIDAT (lump, Pixels, Width, Height, pixwidth, BitDepth, ColorType, Interlace, BigLong((unsigned int)len));
 	delete lump;