diff --git a/plugins/zzogl-pg/opengl/ZZoglFlush.cpp b/plugins/zzogl-pg/opengl/ZZoglFlush.cpp
index e4338b555a..446eebaf25 100644
--- a/plugins/zzogl-pg/opengl/ZZoglFlush.cpp
+++ b/plugins/zzogl-pg/opengl/ZZoglFlush.cpp
@@ -2032,7 +2032,7 @@ void ZeroGS::SetTexClamping(int context, FRAGMENTSHADER* pfragment)
 
 		case 3: // region rep x
 			v.x = 0.9999f;
-			v.z = fw;
+			v.z = (float)fw;
 			v2.x = (float)GPU_TEXMASKWIDTH / fw;
 			v2.z = pclamp->maxu / fw;
 			int correctMinu = pclamp->minu & (~pclamp->maxu);		// (A && B) || C == (A && (B && !C)) + C
@@ -2067,7 +2067,7 @@ void ZeroGS::SetTexClamping(int context, FRAGMENTSHADER* pfragment)
 
 		case 3: // region rep y
 			v.y = 0.9999f;
-			v.w = fh;
+			v.w = (float)fh;
 			v2.y = (float)GPU_TEXMASKWIDTH / fh;
 			v2.w = pclamp->maxv / fh;
 			int correctMinv = pclamp->minv & (~pclamp->maxv);		// (A && B) || C == (A && (B && !C)) + C
diff --git a/plugins/zzogl-pg/opengl/ps2hw.fx b/plugins/zzogl-pg/opengl/ps2hw.fx
index 1d372be9bd..c76252ba26 100644
--- a/plugins/zzogl-pg/opengl/ps2hw.fx
+++ b/plugins/zzogl-pg/opengl/ps2hw.fx
@@ -1,19 +1,4 @@
-//  Cg Shaders for PS2 GS emulation
-//
-//	This program is free software; you can redistribute it and/or modify
-//	it under the terms of the GNU General Public License as published by
-//	the Free Software Foundation; either version 2 of the License, or
-//	(at your option) any later version.
-//
-//	This program is distributed in the hope that it will be useful,
-//	but WITHOUT ANY WARRANTY; without even the implied warranty of
-//	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.	See the
-//	GNU General Public License for more details.
-//
-//	You should have received a copy of the GNU General Public License
-//	along with this program; if not, write to the Free Software
-//	Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA	02111-1307	USA
-//
+// Cg Shaders for PS2 GS emulation
 
 // divides by z for every pixel, instead of in vertex shader
 // fixes kh textures
@@ -92,7 +77,6 @@ float2 ps2memcoord(float2 realtex)
 	float2 fblock = frac(realtex.xy);
 	off.xy = realtex.xy-fblock.xy;
 
-//#if 0 
 #ifdef ACCURATE_DECOMPRESSION
 	off.zw = tex2D(g_sBlocks, g_fTexBlock.xy*fblock + g_fTexBlock.zw).ar;
 	off.x = dot(off.xy, g_fTexOffset.xy); 
@@ -216,9 +200,9 @@ float2 ps2addr(float2 coord)
 	float2 final = frac(clamp(coord.xy, g_fClampExts.xy, g_fClampExts.zw));
 
 	if( TexWrapMode.x > g_fBilinear.z ) // region repeat mode for x (umsk&x)|ufix
-		final.x = texRECT(g_sBitwiseANDX, abs(coord.x)*TexWrapMode.zz).x * g_fClampExts.x + g_fClampExts.z;
+		final.x = texRECT(g_sBitwiseANDX, abs(coord.x)*TexWrapMode.zx).x * g_fClampExts.x + g_fClampExts.z;
 	if( TexWrapMode.y > g_fBilinear.z ) // region repeat mode for x (vmsk&x)|vfix
-		final.y = texRECT(g_sBitwiseANDY, abs(coord.y)*TexWrapMode.ww).x * g_fClampExts.y + g_fClampExts.w;
+		final.y = texRECT(g_sBitwiseANDY, abs(coord.y)*TexWrapMode.wy).x * g_fClampExts.y + g_fClampExts.w;
 
 	return final;
 }
@@ -337,7 +321,7 @@ decl_ps2shade_##num(_tex16to32h) \
 
 // nearest
 #define decl_ps2shade_0(bit) \
-half4 ps2shade0##bit( TEX_DECL tex) \
+float4 ps2shade0##bit( TEX_DECL tex) \
 { \
     return tex2DPS##bit( ps2addr(TEX_XY)); \
 } \
@@ -745,7 +729,7 @@ half4 BilinearFloat16(float2 tex0)
 half4 CRTCTargInterPS(in float2 tex0 : TEXCOORD0, in float2 ointerpos : TEXCOORD1) : COLOR
 {
 	float finter = texRECT(g_sInterlace, ointerpos.yy).x * g_fOneColor.z + g_fOneColor.w + g_fc0.w;
-	half4 c = BilinearFloat16(tex0);
+	float4 c = BilinearFloat16(tex0);
 	c.w = ( g_fc0.w*c.w * g_fOneColor.x + g_fOneColor.y ) * finter;
 	return c;
 }
diff --git a/plugins/zzogl-pg/opengl/targets.cpp b/plugins/zzogl-pg/opengl/targets.cpp
index b27e35be86..74b0cd593b 100644
--- a/plugins/zzogl-pg/opengl/targets.cpp
+++ b/plugins/zzogl-pg/opengl/targets.cpp
@@ -2543,24 +2543,25 @@ u32 ZeroGS::CBitwiseTextureMngr::GetTexInt(u32 bitvalue, u32 ptexDoNotDelete)
 
 	if (glGetError() != GL_NO_ERROR) ZZLog::Error_Log("Error on generation of bitmask texture.");
 
-	vector<u16> data(GPU_TEXMASKWIDTH + 1);
+	vector<u16> data(GPU_TEXMASKWIDTH);
 
 	for (u32 i = 0; i < GPU_TEXMASKWIDTH; ++i)
 	{
 		data[i] = (((i << MASKDIVISOR) & bitvalue) << 6); // add the 1/2 offset so that
 	}
+	
+	//	data[GPU_TEXMASKWIDTH] = 0;	// I remove GPU_TEXMASKWIDTH+1 element of this texture, because it was a reason of FFC crush
+									// Probably, some sort of PoT incompability in drivers.
 
-	data[GPU_TEXMASKWIDTH] = 0;
-
-	glBindTexture(GL_TEXTURE_RECTANGLE_NV, ptex);
+	glBindTexture(GL_TEXTURE_RECTANGLE, ptex);
 	if (glGetError() != GL_NO_ERROR) ZZLog::Error_Log("Error on binding bitmask texture.");
 
-	TextureRect(GL_LUMINANCE16, GPU_TEXMASKWIDTH + 1, 1, GL_LUMINANCE, GL_UNSIGNED_SHORT, &data[0]);
+	TextureRect2(GL_LUMINANCE16, GPU_TEXMASKWIDTH, 1, GL_LUMINANCE, GL_UNSIGNED_SHORT, &data[0]);
 	if (glGetError() != GL_NO_ERROR) ZZLog::Error_Log("Error on applying bitmask texture.");
 
 //	Removing clamping, as it seems lead to numerous troubles at some drivers
 //	Need to observe, may be clamping is not really needed.
-	/* setTexRectWrap(GL_REPEAT);
+	/* setRectWrap2(GL_REPEAT);
 
 	GLint Error = glGetError();
 	if( Error != GL_NO_ERROR ) {
diff --git a/plugins/zzogl-pg/opengl/targets.h b/plugins/zzogl-pg/opengl/targets.h
index c055012781..de2061076d 100644
--- a/plugins/zzogl-pg/opengl/targets.h
+++ b/plugins/zzogl-pg/opengl/targets.h
@@ -345,6 +345,11 @@ static __forceinline void TextureRect(GLint iFormat, GLint width, GLint height,
 	glTexImage2D(GL_TEXTURE_RECTANGLE_NV, 0, iFormat, width, height, 0, format, type, pixels);
 }
 
+static __forceinline void TextureRect2(GLint iFormat, GLint width, GLint height, GLenum format, GLenum type, const GLvoid* pixels)
+{
+	glTexImage2D(GL_TEXTURE_RECTANGLE_NV, 0, iFormat, width, height, 0, format, type, pixels);
+}
+
 static __forceinline void TextureRect(GLenum attach, GLuint id = 0)
 {
 	glFramebufferRenderbufferEXT(GL_FRAMEBUFFER_EXT, attach, GL_RENDERBUFFER_EXT, id);
@@ -386,5 +391,11 @@ static __forceinline void setRectWrap(GLint type)
 	glTexParameteri(GL_TEXTURE_RECTANGLE_NV, GL_TEXTURE_WRAP_S, type);
 	glTexParameteri(GL_TEXTURE_RECTANGLE_NV, GL_TEXTURE_WRAP_T, type);
 }
+
+static __forceinline void setRectWrap2(GLint type)
+{
+	glTexParameteri(GL_TEXTURE_RECTANGLE, GL_TEXTURE_WRAP_S, type);
+	glTexParameteri(GL_TEXTURE_RECTANGLE, GL_TEXTURE_WRAP_T, type);
+}
 	
 #endif