diff --git a/src/dos/drive_cache.cpp b/src/dos/drive_cache.cpp
index 2facf3f..daca286 100644
--- a/src/dos/drive_cache.cpp
+++ b/src/dos/drive_cache.cpp
@@ -185,7 +185,9 @@ char* DOS_Drive_Cache::GetExpandName(const char* path) {
 #else
 		if((len > 1) && (work[len-1] == CROSS_FILESPLIT )) {
 #endif       
+#ifndef HW_RVL
 			work[len-1] = 0; // Remove trailing slashes except when in root
+#endif
 		}
 	}
 	return work;
diff --git a/src/gui/render_scalers.h b/src/gui/render_scalers.h
index 4bd22b0..5e09d28 100644
--- a/src/gui/render_scalers.h
+++ b/src/gui/render_scalers.h
@@ -21,18 +21,29 @@
 
 //#include "render.h"
 #include "video.h"
-#if RENDER_USE_ADVANCED_SCALERS>0
-#define SCALER_MAXWIDTH		1280 
-#define SCALER_MAXHEIGHT	1024
-#else
-// reduced to save some memory
-#define SCALER_MAXWIDTH		800 
-#define SCALER_MAXHEIGHT	600
-#endif
 
-#if RENDER_USE_ADVANCED_SCALERS>1
-#define SCALER_COMPLEXWIDTH		800
-#define SCALER_COMPLEXHEIGHT	600
+#ifdef HW_RVL
+	#define SCALER_MAXWIDTH		640 
+	#define SCALER_MAXHEIGHT	480
+
+	#if RENDER_USE_ADVANCED_SCALERS>1
+	#define SCALER_COMPLEXWIDTH		640
+	#define SCALER_COMPLEXHEIGHT	480
+	#endif
+#else
+	#if RENDER_USE_ADVANCED_SCALERS>0
+	#define SCALER_MAXWIDTH		1280 
+	#define SCALER_MAXHEIGHT	1024
+	#else
+	// reduced to save some memory
+	#define SCALER_MAXWIDTH		800 
+	#define SCALER_MAXHEIGHT	600
+	#endif
+
+	#if RENDER_USE_ADVANCED_SCALERS>1
+	#define SCALER_COMPLEXWIDTH		800
+	#define SCALER_COMPLEXHEIGHT	600
+	#endif
 #endif
 
 #define SCALER_BLOCKSIZE	16
diff --git a/src/platform/wii/missingfunctions.cpp b/src/platform/wii/missingfunctions.cpp
index 386c3bc..90bcbce 100644
--- a/src/platform/wii/missingfunctions.cpp
+++ b/src/platform/wii/missingfunctions.cpp
@@ -5,31 +5,36 @@
 #include <libgen.h>
 #include <sys/stat.h>
 #include "dos_inc.h"
-#define MAX_FILENAME_LENGTH 256
 
-static char tmp[MAX_FILENAME_LENGTH];
-char * dirname(char * file) {
-	// CAKTODO
+static char tmp[MAXPATHLEN];
+
+char * dirname(char * file)
+{
+	if(!file || file[0] == 0)
+		return ".";
+
 	char * sep = strrchr(file, '/');
 	if (sep == NULL)
 		sep = strrchr(file, '\\');
 	if (sep == NULL)
-		return "";
-	else {
-		int len = (int)(sep - file);
-		safe_strncpy(tmp, file, len+1);
-		return tmp;
-	}
+		return ".";
+
+	int len = (int)(sep - file);
+	safe_strncpy(tmp, file, len+1);
+	return tmp;
 }
-int access(const char *path, int amode) {
+int access(const char *path, int amode)
+{
 	struct stat st;
 	bool folderExists = (stat(path, &st) == 0);
 	if (folderExists) return 0;
 	else return ENOENT;
 }
-int rmdir(const char *path) {
+int rmdir(const char *path)
+{
 	return remove(path);
 }
-int execlp(const char *file, const char *arg, ...) {
+int execlp(const char *file, const char *arg, ...)
+{
 	return -1;
 }