diff --git a/source/ngc/fileop.cpp b/source/ngc/fileop.cpp
index 3e73885..5171a45 100644
--- a/source/ngc/fileop.cpp
+++ b/source/ngc/fileop.cpp
@@ -60,6 +60,7 @@ lwp_t devicethread = LWP_THREAD_NULL;
 static void *
 devicecallback (void *arg)
 {
+	sleep(1);
 	while (1)
 	{
 #ifdef HW_RVL
@@ -74,7 +75,7 @@ devicecallback (void *arg)
 
 		if(isMounted[METHOD_USB])
 		{
-			if(!usb->isInserted()) // check if the device was removed - doesn't work on USB!
+			if(!usb->isInserted()) // check if the device was removed
 			{
 				unmountRequired[METHOD_USB] = true;
 				isMounted[METHOD_USB] = false;
@@ -101,7 +102,7 @@ devicecallback (void *arg)
 			}
 		}
 #endif
-		usleep(500000); // suspend thread for 1/2 sec
+		sleep(1); // suspend thread for 1 sec
 	}
 	return NULL;
 }
@@ -478,30 +479,32 @@ LoadFile (char * rbuffer, char *filepath, u32 length, int method, bool silent)
 						else
 						{
 							struct stat fileinfo;
-							fstat(file->_file, &fileinfo);
-							size = fileinfo.st_size;
-
-							memcpy (rbuffer, zipbuffer, readsize); // copy what we already read
-
-							u32 offset = readsize;
-							u32 nextread = 0;
-							while(offset < size)
+							if(fstat(file->_file, &fileinfo) == 0)
 							{
-								if(size - offset > 1024*512) nextread = 1024*512;
-								else nextread = size-offset;
-								ShowProgress ("Loading...", offset, size);
-								readsize = fread (rbuffer + offset, 1, nextread, file); // read in next chunk
+								size = fileinfo.st_size;
 
-								if(readsize <= 0 || readsize > nextread)
-									break; // read failure
+								memcpy (rbuffer, zipbuffer, readsize); // copy what we already read
 
-								if(readsize > 0)
-									offset += readsize;
+								u32 offset = readsize;
+								u32 nextread = 0;
+								while(offset < size)
+								{
+									if(size - offset > 1024*512) nextread = 1024*512;
+									else nextread = size-offset;
+									ShowProgress ("Loading...", offset, size);
+									readsize = fread (rbuffer + offset, 1, nextread, file); // read in next chunk
+
+									if(readsize <= 0 || readsize > nextread)
+										break; // read failure
+
+									if(readsize > 0)
+										offset += readsize;
+								}
+								CancelAction();
+
+								if(offset != size) // # bytes read doesn't match # expected
+									size = 0;
 							}
-							CancelAction();
-
-							if(offset != size) // # bytes read doesn't match # expected
-								size = 0;
 						}
 					}
 				}
@@ -570,8 +573,17 @@ SaveFile (char * buffer, char *filepath, u32 datasize, int method, bool silent)
 
 			if (file > 0)
 			{
-				written = fwrite (savebuffer, 1, datasize, file);
-				if(written < datasize) written = 0;
+				u32 writesize, nextwrite;
+				while(written < datasize)
+				{
+					if(datasize - written > 16*1024) nextwrite=16*1024;
+					else nextwrite = datasize-written;
+					writesize = fwrite (buffer+written, 1, nextwrite, file);
+					if(writesize != nextwrite) break; // write failure
+					written += writesize;
+				}
+
+				if(written != datasize) written = 0;
 				fclose (file);
 			}
 		}
diff --git a/source/ngc/menu.cpp b/source/ngc/menu.cpp
index 1a7781d..e202ed7 100644
--- a/source/ngc/menu.cpp
+++ b/source/ngc/menu.cpp
@@ -40,6 +40,8 @@ extern "C" {
 #include "menu.h"
 #include "wiiusbsupport.h"
 
+#define THREAD_SLEEP 100
+
 #ifdef HW_RVL
 GuiImageData * pointer[4];
 #endif
@@ -99,7 +101,7 @@ HaltGui()
 
 	// wait for thread to finish
 	while(!LWP_ThreadIsSuspended(guithread))
-		usleep(50);
+		usleep(THREAD_SLEEP);
 }
 
 /****************************************************************************
@@ -194,7 +196,7 @@ WindowPrompt(const char *title, const char *msg, const char *btn1Label, const ch
 
 	while(choice == -1)
 	{
-		VIDEO_WaitVSync();
+		usleep(THREAD_SLEEP);
 
 		if(btn1.GetState() == STATE_CLICKED)
 			choice = 1;
@@ -203,7 +205,7 @@ WindowPrompt(const char *title, const char *msg, const char *btn1Label, const ch
 	}
 
 	promptWindow.SetEffect(EFFECT_SLIDE_TOP | EFFECT_SLIDE_OUT, 50);
-	while(promptWindow.GetEffect() > 0) usleep(50);
+	while(promptWindow.GetEffect() > 0) usleep(THREAD_SLEEP);
 	HaltGui();
 	mainWindow->Remove(&promptWindow);
 	mainWindow->SetState(STATE_DEFAULT);
@@ -291,6 +293,7 @@ UpdateGUI (void *arg)
 				#endif
 			}
 		}
+		usleep(THREAD_SLEEP);
 	}
 	return NULL;
 }
@@ -380,7 +383,7 @@ ProgressWindow(char *title, char *msg)
 
 	while(showProgress)
 	{
-		VIDEO_WaitVSync();
+		usleep(20000);
 
 		if(showProgress == 1)
 		{
@@ -443,7 +446,7 @@ CancelAction()
 
 	// wait for thread to finish
 	while(!LWP_ThreadIsSuspended(progressthread))
-		usleep(50);
+		usleep(THREAD_SLEEP);
 }
 
 /****************************************************************************
@@ -572,7 +575,7 @@ static void OnScreenKeyboard(char * var, u32 maxlen)
 
 	while(save == -1)
 	{
-		VIDEO_WaitVSync();
+		usleep(THREAD_SLEEP);
 
 		if(okBtn.GetState() == STATE_CLICKED)
 			save = 1;
@@ -665,7 +668,7 @@ SettingWindow(const char * title, GuiWindow * w)
 
 	while(save == -1)
 	{
-		VIDEO_WaitVSync();
+		usleep(THREAD_SLEEP);
 
 		if(okBtn.GetState() == STATE_CLICKED)
 			save = 1;
@@ -800,6 +803,7 @@ static void WindowCredits(void * ptr)
 			if(userInput[i].wpad.btns_d || userInput[i].pad.btns_d)
 				exit = true;
 		}
+		usleep(THREAD_SLEEP);
 	}
 
 	// clear buttons pressed
@@ -915,7 +919,7 @@ static int MenuGameSelection()
 
 	while(menu == MENU_NONE)
 	{
-		VIDEO_WaitVSync();
+		usleep(THREAD_SLEEP);
 
 		// update gameWindow based on arrow buttons
 		// set MENU_EXIT if A button pressed on a game
@@ -1254,7 +1258,7 @@ static int MenuGame()
 
 	while(menu == MENU_NONE)
 	{
-		VIDEO_WaitVSync();
+		usleep(THREAD_SLEEP);
 
 		#ifdef HW_RVL
 		int level;
@@ -1559,7 +1563,7 @@ static int MenuGameSaves(int action)
 
 	while(menu == MENU_NONE)
 	{
-		VIDEO_WaitVSync ();
+		usleep(THREAD_SLEEP);
 
 		ret = saveBrowser.GetClickedSave();
 
@@ -1826,7 +1830,7 @@ static int MenuGameSettings()
 
 	while(menu == MENU_NONE)
 	{
-		VIDEO_WaitVSync ();
+		usleep(THREAD_SLEEP);
 
 		if(mappingBtn.GetState() == STATE_CLICKED)
 		{
@@ -1947,7 +1951,7 @@ static int MenuGameSettings()
 
 	while(menu == MENU_NONE)
 	{
-		VIDEO_WaitVSync ();
+		usleep(THREAD_SLEEP);
 
 		for(i=0; i < Cheat.num_cheats; i++)
 			sprintf (options.value[i], "%s", Cheat.c[i].enabled == true ? "On" : "Off");
@@ -2127,7 +2131,7 @@ static int MenuSettingsMappings()
 
 	while(menu == MENU_NONE)
 	{
-		VIDEO_WaitVSync ();
+		usleep(THREAD_SLEEP);
 
 		if(keyboardBtn.GetState() == STATE_CLICKED)
 		{
@@ -2234,7 +2238,7 @@ ButtonMappingWindow()
 
 	while(pressed == 0)
 	{
-		VIDEO_WaitVSync();
+		usleep(THREAD_SLEEP);
 
 		if(mapMenuCtrl == CTRLR_GCPAD)
 		{
@@ -2379,7 +2383,7 @@ static int MenuSettingsMappingsMap()
 
 	while(menu == MENU_NONE)
 	{
-		VIDEO_WaitVSync ();
+		usleep(THREAD_SLEEP);
 
 		for(i=0; i < options.length; i++)
 		{
@@ -2685,7 +2689,7 @@ static int MenuSettingsVideo()
 
 	while(menu == MENU_NONE)
 	{
-		VIDEO_WaitVSync ();
+		usleep(THREAD_SLEEP);
 
 		if (GCSettings.render == 0)
 			sprintf (options.value[0], "Original");
@@ -2909,7 +2913,7 @@ static int MenuSettings()
 
 	while(menu == MENU_NONE)
 	{
-		VIDEO_WaitVSync ();
+		usleep(THREAD_SLEEP);
 
 		if(savingBtn.GetState() == STATE_CLICKED)
 		{
@@ -3014,7 +3018,7 @@ static int MenuSettingsFile()
 
 	while(menu == MENU_NONE)
 	{
-		VIDEO_WaitVSync ();
+		usleep(THREAD_SLEEP);
 
 		// some load/save methods are not implemented - here's where we skip them
 		// they need to be skipped in the order they were enumerated in snes9xGX.h
@@ -3200,7 +3204,7 @@ static int MenuSettingsMenu()
 
 	while(menu == MENU_NONE)
 	{
-		VIDEO_WaitVSync ();
+		usleep(THREAD_SLEEP);
 
 		#ifdef HW_RVL
 		if (GCSettings.ExitAction == 1)
@@ -3333,7 +3337,7 @@ static int MenuSettingsNetwork()
 
 	while(menu == MENU_NONE)
 	{
-		VIDEO_WaitVSync ();
+		usleep(THREAD_SLEEP);
 
 		strncpy (options.value[0], GCSettings.smbip, 15);
 		strncpy (options.value[1], GCSettings.smbshare, 19);
@@ -3499,6 +3503,7 @@ MainMenu (int menu)
 				break;
 		}
 		lastMenu = currentMenu;
+		usleep(THREAD_SLEEP);
 	}
 
 	#ifdef HW_RVL
diff --git a/source/ngc/video.cpp b/source/ngc/video.cpp
index 50a6970..489b589 100644
--- a/source/ngc/video.cpp
+++ b/source/ngc/video.cpp
@@ -136,7 +136,7 @@ InitVideoThread ()
  * Stock code to copy the GX buffer to the current display mode.
  * Also increments the frameticker, as it's called for each vb.
  ***************************************************************************/
-static void
+static inline void
 copy_to_xfb (u32 arg)
 {
 	if (copynow == GX_TRUE)
@@ -153,7 +153,7 @@ copy_to_xfb (u32 arg)
 /****************************************************************************
  * Scaler Support Functions
  ****************************************************************************/
-static void draw_init(void)
+static inline void draw_init(void)
 {
 	GX_ClearVtxDesc ();
 	GX_SetVtxDesc (GX_VA_POS, GX_INDEX8);
@@ -186,14 +186,14 @@ static void draw_init(void)
 		GX_InitTexObjLOD(&texobj,GX_NEAR,GX_NEAR_MIP_NEAR,2.5,9.0,0.0,GX_FALSE,GX_FALSE,GX_ANISO_1); // original/unfiltered video mode: force texture filtering OFF
 }
 
-static void draw_vert(u8 pos, u8 c, f32 s, f32 t)
+static inline void draw_vert(u8 pos, u8 c, f32 s, f32 t)
 {
 	GX_Position1x8(pos);
 	GX_Color1x8(c);
 	GX_TexCoord2f32(s, t);
 }
 
-static void draw_square(Mtx v)
+static inline void draw_square(Mtx v)
 {
 	Mtx m;			// model matrix.
 	Mtx mv;			// modelview matrix.
@@ -221,7 +221,7 @@ static void draw_square(Mtx v)
 }
 
 #ifdef HW_RVL
-static void draw_cursor(Mtx v)
+static inline void draw_cursor(Mtx v)
 {
 	if (!CursorVisible || !CursorValid)
 		return;
@@ -474,7 +474,7 @@ InitializeVideo ()
 }
 
 
-static void UpdateScaling()
+static inline void UpdateScaling()
 {
 	int xscale;
 	int yscale;