diff --git a/Source/Plugins/Plugin_VideoOGL/Src/PixelShader.cpp b/Source/Plugins/Plugin_VideoOGL/Src/PixelShader.cpp
index 28b0939faa..1c7f06301e 100644
--- a/Source/Plugins/Plugin_VideoOGL/Src/PixelShader.cpp
+++ b/Source/Plugins/Plugin_VideoOGL/Src/PixelShader.cpp
@@ -135,7 +135,7 @@ static const char *tevOpTable[] = { // TEV
     "-",      //TEVOP_SUB = 1,
 };
 
-static const char *tevCompOpTable[] = { ">", "==" };
+//static const char *tevCompOpTable[] = { ">", "==" };
 
 #define TEVCMP_R8    0
 #define TEVCMP_GR16  1
@@ -242,7 +242,7 @@ static const char *alphaRef[2] =
     I_ALPHA"[0].y"
 };
 
-static const char *tevTexFunc[] = { "tex2D", "texRECT" };
+//static const char *tevTexFunc[] = { "tex2D", "texRECT" };
 
 static const char *tevCOutputTable[]  = { "prev.rgb", "c0.rgb", "c1.rgb", "c2.rgb" };
 static const char *tevAOutputTable[]  = { "prev.a", "c0.a", "c1.a", "c2.a" };
@@ -460,7 +460,6 @@ void WriteStage(char *&p, int n, u32 texture_mask)
     char *rasswap = swapModeTable[bpmem.combiners[n].alphaC.rswap];
     char *texswap = swapModeTable[bpmem.combiners[n].alphaC.tswap];
 
-    int colchan = bpmem.tevorders[n/2].getColorChan(n&1);
 
     int texcoord = bpmem.tevorders[n/2].getTexCoord(n&1);
     int texfun = xfregs.texcoords[texcoord].texmtxinfo.projection;
@@ -804,7 +803,6 @@ bool WriteAlphaTest(char *&p)
         break;
     }
 
-    bool bFirst = false;
     WRITE(p, "discard( ");
     WriteAlphaCompare(p, 0, bpmem.alphaFunc.comp0);
     
diff --git a/Source/Plugins/Plugin_VideoOGL/Src/PixelShaderManager.cpp b/Source/Plugins/Plugin_VideoOGL/Src/PixelShaderManager.cpp
index e315f240d0..3dcf743b44 100644
--- a/Source/Plugins/Plugin_VideoOGL/Src/PixelShaderManager.cpp
+++ b/Source/Plugins/Plugin_VideoOGL/Src/PixelShaderManager.cpp
@@ -169,7 +169,8 @@ void PixelShaderMngr::Cleanup()
 
 bool PixelShaderMngr::CompilePixelShader(FRAGMENTSHADER& ps, const char* pstrprogram)
 {
-    CGerror cgerr = cgGetError();
+  //    todo: Should error be checked?
+  //    CGerror cgerr = cgGetError();
 
     char stropt[64];
     sprintf(stropt, "MaxLocalParams=32,NumInstructionSlots=%d", s_nMaxPixelInstructions);
@@ -237,7 +238,7 @@ void PixelShaderMngr::SetConstants(FRAGMENTSHADER& ps)
     }
 
     u32 newmask = 0;
-    for(u32 i = 0; i < bpmem.genMode.numtevstages+1; ++i) {
+    for(u32 i = 0; i < (u32)bpmem.genMode.numtevstages+1; ++i) {
         if( bpmem.tevorders[i/2].getEnable(i&1) ) {
             int texmap = bpmem.tevorders[i/2].getTexMap(i&1);
             maptocoord[texmap] = bpmem.tevorders[i/2].getTexCoord(i&1);
@@ -496,7 +497,7 @@ GLuint PixelShaderMngr::GetColorMatrixProgram()
 void PixelShaderMngr::GetPixelShaderId(PixelShaderMngr::PIXELSHADERUID& uid)
 {
     u32 projtexcoords = 0;
-    for (u32 i = 0; i < bpmem.genMode.numtevstages+1; i++) {
+    for (u32 i = 0; i < (u32)bpmem.genMode.numtevstages+1; i++) {
         if( bpmem.tevorders[i/2].getEnable(i&1) ) {
             int texcoord = bpmem.tevorders[i/2].getTexCoord(i&1);
             if( xfregs.texcoords[texcoord].texmtxinfo.projection )
@@ -520,7 +521,7 @@ void PixelShaderMngr::GetPixelShaderId(PixelShaderMngr::PIXELSHADERUID& uid)
     int hdr = 3;
 
     u32* pcurvalue = &uid.values[hdr];
-    for(u32 i = 0; i < bpmem.genMode.numtevstages+1; ++i) {
+    for(u32 i = 0; i < (u32)bpmem.genMode.numtevstages+1; ++i) {
         TevStageCombiner::ColorCombiner &cc = bpmem.combiners[i].colorC;
         TevStageCombiner::AlphaCombiner &ac = bpmem.combiners[i].alphaC;
 
@@ -534,7 +535,7 @@ void PixelShaderMngr::GetPixelShaderId(PixelShaderMngr::PIXELSHADERUID& uid)
         pcurvalue+=2;
     }
 
-    for(u32 i = 0; i < (bpmem.genMode.numtevstages+1)/2; ++i) {
+    for(u32 i = 0; i < ((u32)bpmem.genMode.numtevstages+1)/2; ++i) {
         u32 val0, val1;
         if( bpmem.tevorders[i].hex&0x40 ) val0 = bpmem.tevorders[i].hex&0x3ff;
         else val0 = bpmem.tevorders[i].hex&0x380;
diff --git a/Source/Plugins/Plugin_VideoOGL/Src/Render.cpp b/Source/Plugins/Plugin_VideoOGL/Src/Render.cpp
index 1a253e0df5..d681128784 100644
--- a/Source/Plugins/Plugin_VideoOGL/Src/Render.cpp
+++ b/Source/Plugins/Plugin_VideoOGL/Src/Render.cpp
@@ -154,7 +154,7 @@ bool Renderer::Create2()
 
     // create the framebuffer targets
     glGenTextures(ARRAYSIZE(s_RenderTargets), (GLuint *)s_RenderTargets);
-    for(int i = 0; i < ARRAYSIZE(s_RenderTargets); ++i) {
+    for(u32 i = 0; i < ARRAYSIZE(s_RenderTargets); ++i) {
         glBindTexture(GL_TEXTURE_RECTANGLE_NV, s_RenderTargets[i]);
         // initialize to default
         glTexImage2D(GL_TEXTURE_RECTANGLE_NV, 0, 4, nBackbufferWidth, nBackbufferHeight, 0, GL_RGBA, GL_UNSIGNED_BYTE, NULL);
diff --git a/Source/Plugins/Plugin_VideoOGL/Src/TextureMngr.cpp b/Source/Plugins/Plugin_VideoOGL/Src/TextureMngr.cpp
index 7afd41e4c4..c90efa30ea 100644
--- a/Source/Plugins/Plugin_VideoOGL/Src/TextureMngr.cpp
+++ b/Source/Plugins/Plugin_VideoOGL/Src/TextureMngr.cpp
@@ -205,7 +205,7 @@ TextureMngr::TCacheEntry* TextureMngr::Load(int texstage, u32 address, int width
     if (iter != textures.end()) {
         TCacheEntry &entry = iter->second;
 
-        if( entry.isRenderTarget || ((u32 *)ptr)[entry.hashoffset] == entry.hash && palhash == entry.paletteHash) { //stupid, improve
+        if((entry.isRenderTarget || ((u32 *)ptr)[entry.hashoffset] == entry.hash) && palhash == entry.paletteHash) { //stupid, improve
             entry.frameCount = frameCount;
             //glEnable(entry.isNonPow2?GL_TEXTURE_RECTANGLE_NV:GL_TEXTURE_2D);
             glBindTexture(entry.isNonPow2?GL_TEXTURE_RECTANGLE_NV:GL_TEXTURE_2D, entry.texture);
diff --git a/Source/Plugins/Plugin_VideoOGL/Src/VertexLoader.cpp b/Source/Plugins/Plugin_VideoOGL/Src/VertexLoader.cpp
index 6afb5f4e81..899bb07b69 100644
--- a/Source/Plugins/Plugin_VideoOGL/Src/VertexLoader.cpp
+++ b/Source/Plugins/Plugin_VideoOGL/Src/VertexLoader.cpp
@@ -52,7 +52,6 @@ static void (*fnSetupVertexPointers)() = NULL;
 
 //these don't need to be saved
 static float posScale;
-static float tcScale[8];
 static int colElements[2];
 static float tcScaleU[8];
 static float tcScaleV[8];
@@ -388,7 +387,6 @@ void VertexLoader::ProcessFormat()
     // Normals
     if (m_VtxDesc.Normal != NOT_PRESENT) {
         VertexLoader_Normal::index3 = m_VtxAttr.NormalIndex3 ? true : false;
-        unsigned int uSize = VertexLoader_Normal::GetSize(m_VtxDesc.Normal, m_VtxAttr.NormalFormat, m_VtxAttr.NormalElements);
         TPipelineFunction pFunc = VertexLoader_Normal::GetFunction(m_VtxDesc.Normal, m_VtxAttr.NormalFormat, m_VtxAttr.NormalElements);
         if (pFunc == 0)
         {
@@ -855,7 +853,7 @@ void VertexLoader::RunVertices(int primitive, int count)
         colIndex = 0;
         s_texmtxwrite = s_texmtxread = 0;
 
-		int pred_size = m_VertexSize;
+                //        int pred_size = m_VertexSize;
 
 		//int start = GetBufferPosition();
 		//if (!m_numPipelineStates)
@@ -909,12 +907,12 @@ bool VertexManager::Init()
 	s_pBaseBufferPointer = (u8*)AllocateMemoryPages(MAX_BUFFER_SIZE);
     s_pCurBufferPointer = s_pBaseBufferPointer;
 
-    for (int i = 0; i < ARRAYSIZE(shiftLookup); i++)
+    for (u32 i = 0; i < ARRAYSIZE(shiftLookup); i++)
         shiftLookup[i] = 1.0f / float(1 << i);
 
     s_nCurVBOIndex = 0;
     glGenBuffers(ARRAYSIZE(s_vboBuffers), s_vboBuffers);
-    for (int i = 0; i < ARRAYSIZE(s_vboBuffers); ++i) {
+    for (u32 i = 0; i < ARRAYSIZE(s_vboBuffers); ++i) {
         glBindBuffer(GL_ARRAY_BUFFER, s_vboBuffers[i]);
         glBufferData(GL_ARRAY_BUFFER, MAX_BUFFER_SIZE, NULL, GL_STREAM_DRAW);
     }
@@ -970,8 +968,10 @@ void VertexManager::AddVertices(int primitive, int numvertices)
     ADDSTAT(stats.thisFrame.numPrims, numvertices);
     s_vStoredPrimitives.push_back(pair<int, int>(c_primitiveType[primitive], numvertices));
 
+#ifdef _DEBUG
     static const char *sprims[8] = {"quads", "nothing", "tris", "tstrip", "tfan", "lines", "lstrip", "points"};
     PRIM_LOG("prim: %s, c=%d\n", sprims[primitive], numvertices);
+#endif
 }
 
 void VertexManager::Flush()
@@ -1023,13 +1023,13 @@ void VertexManager::Flush()
         DVProfileFunc _pf("VertexManager::Flush:textures");
     
         u32 usedtextures = 0;
-        for (u32 i = 0; i < bpmem.genMode.numtevstages+1; ++i) {
+        for (u32 i = 0; i < (u32)bpmem.genMode.numtevstages+1; ++i) {
             if( bpmem.tevorders[i/2].getEnable(i&1) )
                 usedtextures |= 1<<bpmem.tevorders[i/2].getTexMap(i&1);
         }
 
         if( bpmem.genMode.numindstages > 0 ) {
-            for(u32 i = 0; i < bpmem.genMode.numtevstages+1; ++i) {
+          for(u32 i = 0; i < (u32)bpmem.genMode.numtevstages+1; ++i) {
                 if( bpmem.tevind[i].IsActive() && bpmem.tevind[i].bt < bpmem.genMode.numindstages ) {
                     usedtextures |= 1<<bpmem.tevindref.getTexMap(bpmem.tevind[i].bt);
                 }
diff --git a/Source/Plugins/Plugin_VideoOGL/Src/VertexLoader_TextCoord.h b/Source/Plugins/Plugin_VideoOGL/Src/VertexLoader_TextCoord.h
index 82a38647c7..00aa53ca73 100644
--- a/Source/Plugins/Plugin_VideoOGL/Src/VertexLoader_TextCoord.h
+++ b/Source/Plugins/Plugin_VideoOGL/Src/VertexLoader_TextCoord.h
@@ -269,7 +269,6 @@ void LOADERDECL TexCoord_ReadIndex16_Byte2(void* _p)
 
 void LOADERDECL TexCoord_ReadIndex16_UShort1(void* _p)	
 {
-    TVtxAttr* pVtxAttr = (TVtxAttr*)_p;
     u16 Index = ReadBuffer16(); 
     u32 iAddress = arraybases[ARRAY_TEXCOORD0+tcIndex] + (Index * arraystrides[ARRAY_TEXCOORD0+tcIndex]);
 
@@ -280,7 +279,6 @@ void LOADERDECL TexCoord_ReadIndex16_UShort1(void* _p)
 }
 void LOADERDECL TexCoord_ReadIndex16_UShort2(void* _p)	
 {
-    TVtxAttr* pVtxAttr = (TVtxAttr*)_p;
     u16 Index = ReadBuffer16(); 
     u32 iAddress = arraybases[ARRAY_TEXCOORD0+tcIndex] + (Index * arraystrides[ARRAY_TEXCOORD0+tcIndex]);
 
diff --git a/Source/Plugins/Plugin_VideoOGL/Src/rasterfont.cpp b/Source/Plugins/Plugin_VideoOGL/Src/rasterfont.cpp
index 5004ae3fe4..422f00c126 100644
--- a/Source/Plugins/Plugin_VideoOGL/Src/rasterfont.cpp
+++ b/Source/Plugins/Plugin_VideoOGL/Src/rasterfont.cpp
@@ -201,7 +201,7 @@ void RasterFont::printMultilineText(const char *text, double start_x, double sta
 
 			int cpos = strlen(temp);
 
-			int newpos = cpos+4&(~3);
+                        int newpos = (cpos+4)&(~3);
 
 
 			printString(temp,x,y,z);