Index: src/video/wincommon/SDL_sysevents.c
===================================================================
--- src/video/wincommon/SDL_sysevents.c	(revision 5318)
+++ src/video/wincommon/SDL_sysevents.c	(working copy)
@@ -372,8 +372,7 @@
 		case WM_MOUSEMOVE: {
 
 #ifdef WM_MOUSELEAVE
-			/* No need to handle SDL_APPMOUSEFOCUS when fullscreen */
-			if ( SDL_VideoSurface && !FULLSCREEN() ) {
+			if ( SDL_VideoSurface ) {
 				/* mouse has entered the window */
 
 				if ( !(SDL_GetAppState() & SDL_APPMOUSEFOCUS) ) {
@@ -398,11 +397,8 @@
 #ifdef WM_MOUSELEAVE
 		case WM_MOUSELEAVE: {
 
-			/* No need to handle SDL_APPMOUSEFOCUS when fullscreen */
-			if ( SDL_VideoSurface && !FULLSCREEN() ) {
+			if ( SDL_VideoSurface ) {
 				/* mouse has left the window */
-				/* or */
-				/* Elvis has left the building! */
 				posted = SDL_PrivateAppActive(0, SDL_APPMOUSEFOCUS);
 			}
 		}
Index: src/video/windx5/SDL_dx5events.c
===================================================================
--- src/video/windx5/SDL_dx5events.c	(revision 5318)
+++ src/video/windx5/SDL_dx5events.c	(working copy)
@@ -149,8 +149,8 @@
 #else
 		&c_dfDIMouse,
 #endif
-		(DISCL_FOREGROUND|DISCL_NONEXCLUSIVE),
-		(DISCL_FOREGROUND|DISCL_NONEXCLUSIVE), handle_mouse },
+		(DISCL_BACKGROUND|DISCL_NONEXCLUSIVE),
+		(DISCL_BACKGROUND|DISCL_NONEXCLUSIVE), handle_mouse },
 	{ NULL, NULL, NULL, 0, 0, NULL }
 };
 	
@@ -297,8 +297,7 @@
 {
 	extern int mouse_relative;
 
-	if ( (SDL_GetAppState() & (SDL_APPINPUTFOCUS|SDL_APPMOUSEFOCUS)) ==
-		(SDL_APPINPUTFOCUS|SDL_APPMOUSEFOCUS) ) {
+	if ( SDL_GetAppState() & SDL_APPMOUSEFOCUS ) {
 		posted = SDL_PrivateMouseMotion(
 			0, relative, x, y);
 
@@ -355,10 +354,6 @@
 			ClientToScreen(SDL_Window, &center);
 			SetCursorPos(center.x, center.y);
 		}
-	} else {
-		/* No window or mouse focus, control is lost */
-		mouse_lost = 1;
-		ClipCursor(NULL);
 	}
 }
 
@@ -375,6 +370,12 @@
 		return;
 	}
 
+	/* If mouse focus has been lost, make sure we release the cursor. */
+	if ( !(SDL_GetAppState() & SDL_APPMOUSEFOCUS) ) {
+		mouse_lost = 1;
+		ClipCursor(NULL);
+	}
+
 	/* If the mouse was lost, regain some sense of mouse state */
 	if ( mouse_lost && (SDL_GetAppState() & SDL_APPMOUSEFOCUS) ) {
 		POINT mouse_pos;
@@ -667,7 +668,7 @@
 	}
 
 	/* Pump the DirectInput flow */
-	if ( SDL_GetAppState() & SDL_APPINPUTFOCUS ) {
+	if ( SDL_GetAppState() & SDL_APPMOUSEFOCUS ) {
 		for ( i=0; i<MAX_INPUTS; ++i ) {
 			if ( SDL_DIdev[i] != NULL ) {
 				result = IDirectInputDevice2_Poll(SDL_DIdev[i]);