diff --git a/doomclassic/doom/d_main.h b/doomclassic/doom/d_main.h
index 455c48c9..cde4c435 100644
--- a/doomclassic/doom/d_main.h
+++ b/doomclassic/doom/d_main.h
@@ -66,9 +66,9 @@ void D_PageDrawer (void);
 void D_AdvanceDemo (void);
 void D_StartTitle (void);
 
-#define R_OK	0x01
-#define X_OK	0x02
-#define W_OK	0x04
+//#define R_OK	0x01
+//#define X_OK	0x02
+//#define W_OK	0x04
 int access(char* name, int val);
 
 
diff --git a/neo/framework/common_frame.cpp b/neo/framework/common_frame.cpp
index 62362fd4..0441c5e2 100644
--- a/neo/framework/common_frame.cpp
+++ b/neo/framework/common_frame.cpp
@@ -408,7 +408,7 @@ This is an out-of-sequence screen update, not the normal game rendering
 // DG: added possibility to *not* release mouse in UpdateScreen(), it fucks up the view angle for screenshots
 void idCommonLocal::UpdateScreen( bool captureToImage, bool releaseMouse )
 {
-	if( insideUpdateScreen )
+	if( insideUpdateScreen || com_shuttingDown )
 	{
 		return;
 	}
diff --git a/neo/idlib/MapFile.cpp b/neo/idlib/MapFile.cpp
index f00138b9..b91f1a10 100644
--- a/neo/idlib/MapFile.cpp
+++ b/neo/idlib/MapFile.cpp
@@ -2207,6 +2207,24 @@ void MapPolygonMesh::ConvertFromBrush( const idMapBrush* mapBrush, int entityNum
 			st.x = ( xyz * texVec[0].ToVec3() ) + texVec[0][3];
 			st.y = ( xyz * texVec[1].ToVec3() ) + texVec[1][3];
 
+			// support Valve 220 projection
+			if( mapSide->GetProjectionType() == idMapBrushSide::PROJECTION_VALVE220 )
+			{
+				const idMaterial* material = declManager->FindMaterial( mapSide->GetMaterial() );
+
+				idVec2i texSize = mapSide->GetTextureSize();
+
+				idImage* image = material->GetEditorImage();
+				if( image != NULL )
+				{
+					texSize.x = image->GetUploadWidth();
+					texSize.y = image->GetUploadHeight();
+				}
+
+				st.x /= texSize[0];
+				st.y /= texSize[1];
+			}
+
 			// flip y
 			//st.y = 1.0f - st.y;
 
diff --git a/neo/renderer/Material.h b/neo/renderer/Material.h
index 0d71148c..756da03a 100644
--- a/neo/renderer/Material.h
+++ b/neo/renderer/Material.h
@@ -239,11 +239,11 @@ struct stencilStage_t
 	// (if either Pass, Fail or ZFail is set to replace).
 	byte ref = 0;
 
-	// An 8 bit mask as an 0–255 integer, used when comparing the reference value with the contents of the buffer
+	// An 8 bit mask as an 0�255 integer, used when comparing the reference value with the contents of the buffer
 	// (referenceValue & readMask) comparisonFunction (stencilBufferValue & readMask).
 	byte readMask = 255;
 
-	// An 8 bit mask as an 0–255 integer, used when writing to the buffer.Note that, like other write masks,
+	// An 8 bit mask as an 0�255 integer, used when writing to the buffer.Note that, like other write masks,
 	// it specifies which bits of stencil buffer will be affected by write
 	// (i.e.WriteMask 0 means that no bits are affected and not that 0 will be written).
 	byte writeMask = 255;
diff --git a/neo/renderer/RenderProgs_embedded.h b/neo/renderer/RenderProgs_embedded.h
index 644f9817..820f15e0 100644
--- a/neo/renderer/RenderProgs_embedded.h
+++ b/neo/renderer/RenderProgs_embedded.h
@@ -609,7 +609,7 @@ static const cgShaderDef_t cg_renderprogs[] =
 		" *\n"
 		" * The shader has three passes, chained together as follows:\n"
 		" *\n"
-		" *                           |input|------------------·\n"
+		" *                           |input|------------------\n"
 		" *                              v                     |\n"
 		" *                    [ SMAA*EdgeDetection ]          |\n"
 		" *                              v                     |\n"
@@ -619,7 +619,7 @@ static const cgShaderDef_t cg_renderprogs[] =
 		" *                              v                     |\n"
 		" *                          |blendTex|                |\n"
 		" *                              v                     |\n"
-		" *                [ SMAANeighborhoodBlending ] <------·\n"
+		" *                [ SMAANeighborhoodBlending ] <------\n"
 		" *                              v\n"
 		" *                           |output|\n"
 		" *\n"
@@ -2072,7 +2072,7 @@ static const cgShaderDef_t cg_renderprogs[] =
 		"}\n"
 		"\n"
 		"// Fresnel term F( v, h )\n"
-		"// Fnone( v, h ) = F(0°) = specularColor\n"
+		"// Fnone( v, h ) = F(0) = specularColor\n"
 		"half3 Fresnel_Schlick( half3 specularColor, half vDotN )\n"
 		"{\n"
 		"	return specularColor + ( 1.0 - specularColor ) * pow( 1.0 - vDotN, 5.0 );\n"
diff --git a/neo/sys/sdl/sdl_events.cpp b/neo/sys/sdl/sdl_events.cpp
index a2e4e66e..a894309b 100644
--- a/neo/sys/sdl/sdl_events.cpp
+++ b/neo/sys/sdl/sdl_events.cpp
@@ -1708,8 +1708,12 @@ sysEvent_t Sys_GetEvent()
 						common->Warning( "unknown user event %u", ev.user.code );
 				}
 				continue; // just handle next event
+
+			case SDL_KEYMAPCHANGED:
+				continue; // just handle next event
+
 			default:
-				common->Warning( "unknown event %u", ev.type );
+				common->Warning( "unknown event %u = %#x", ev.type, ev.type );
 				continue; // just handle next event
 		}
 	}
diff --git a/neo/tools/compilers/dmap/dmap.cpp b/neo/tools/compilers/dmap/dmap.cpp
index f80d6dbc..47068565 100644
--- a/neo/tools/compilers/dmap/dmap.cpp
+++ b/neo/tools/compilers/dmap/dmap.cpp
@@ -409,6 +409,14 @@ void Dmap( const idCmdArgs& args )
 	idStr generated = va( "generated/%s.bproc", dmapGlobals.mapFileBase );
 	fileSystem->RemoveFile( generated.c_str() );
 
+	// delete any old generated binary cm files
+	generated = va( "generated/%s.bcm", dmapGlobals.mapFileBase );
+	fileSystem->RemoveFile( generated.c_str() );
+
+	// delete any old ASCII collision files
+	idStr::snPrintf( path, sizeof( path ), "%s.cm", dmapGlobals.mapFileBase );
+	fileSystem->RemoveFile( path );
+
 	//
 	// start from scratch
 	//